[PATCH 4.9 00/94] 4.9.131-stable review

[PATCH 4.9 00/94] 4.9.131-stable review

[Greg Kroah-Hartman]

This is the start of the stable review cycle for the 4.9.131 release.
There are 94 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Thu Oct  4 13:24:37 UTC 2018.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.131-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 4.9.131-rc1

Mika Westerberg <mika.westerberg@linux.intel.com>
    i2c: i801: Allow ACPI AML access I/O ports not reserved for SMBus

Marc Zyngier <marc.zyngier@arm.com>
    arm/arm64: smccc-1.1: Handle function result as parameters

Marc Zyngier <marc.zyngier@arm.com>
    arm/arm64: smccc-1.1: Make return values unsigned long

Rex Zhu <Rex.Zhu@amd.com>
    drm/amdgpu: Update power state at the end of smu hw_init.

Rex Zhu <Rex.Zhu@amd.com>
    drm/amdgpu: Enable/disable gfx PG feature in rlc safe mode

Dan Carpenter <dan.carpenter@oracle.com>
    hwmon: (adt7475) Make adt7475_read_word() return errors

Lothar Felten <lothar.felten@gmail.com>
    hwmon: (ina2xx) fix sysfs shunt resistor read access

Bo Chen <chenbo@pdx.edu>
    e1000: ensure to free old tx/rx rings in set_ringparam()

Bo Chen <chenbo@pdx.edu>
    e1000: check on netif_running() before calling e1000_up()

Huazhong Tan <tanhuazhong@huawei.com>
    net: hns: fix skb->truesize underestimation

Huazhong Tan <tanhuazhong@huawei.com>
    net: hns: fix length and page_offset overflow when CONFIG_ARM64_64K_PAGES

Anson Huang <Anson.Huang@nxp.com>
    thermal: of-thermal: disable passive polling when thermal zone is disabled

Tomer Tayar <Tomer.Tayar@cavium.com>
    qed: Wait for MCP halt and resume commands to take place

Tomer Tayar <Tomer.Tayar@cavium.com>
    qed: Wait for ready indication before rereading the shmem

Theodore Ts'o <tytso@mit.edu>
    ext4: never move the system.data xattr out of the inode body

Dave Martin <Dave.Martin@arm.com>
    arm64: KVM: Tighten guest core register access from userspace

Ira Weiny <ira.weiny@intel.com>
    IB/hfi1: Fix SL array bounds check

Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
    serial: imx: restore handshaking irq for imx1

Vincent Pelletier <plr.vincent@gmail.com>
    scsi: target: iscsi: Use bin2hex instead of a re-implementation

Michael J. Ruhl <michael.j.ruhl@intel.com>
    IB/hfi1: Fix context recovery when PBC has an UnsupportedVL

Michael J. Ruhl <michael.j.ruhl@intel.com>
    IB/hfi1: Invalid user input can result in crash

Bart Van Assche <bvanassche@acm.org>
    IB/srp: Avoid that sg_reset -d ${srp_device} triggers an infinite loop

Aaron Ma <aaron.ma@canonical.com>
    Input: elantech - enable middle button of touchpad on ThinkPad P72

Alan Stern <stern@rowland.harvard.edu>
    USB: remove LPM management from usb_driver_claim_interface()

Sebastian Andrzej Siewior <bigeasy@linutronix.de>
    Revert "usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()"

Oliver Neukum <oneukum@suse.com>
    USB: usbdevfs: restore warning for nonsensical flags

Oliver Neukum <oneukum@suse.com>
    USB: usbdevfs: sanitize flags more

ming_qian <ming_qian@realsil.com.cn>
    media: uvcvideo: Support realtek's UVC 1.5 device

Alexey Dobriyan <adobriyan@gmail.com>
    slub: make ->cpu_partial unsigned int

Alan Stern <stern@rowland.harvard.edu>
    USB: handle NULL config in usb_find_alt_setting()

Alan Stern <stern@rowland.harvard.edu>
    USB: fix error handling in usb_driver_claim_interface()

Yu Zhao <yuzhao@google.com>
    regulator: fix crash caused by null driver data

Geert Uytterhoeven <geert+renesas@glider.be>
    spi: rspi: Fix interrupted DMA transfers

Geert Uytterhoeven <geert+renesas@glider.be>
    spi: rspi: Fix invalid SPI use during system suspend

Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
    spi: sh-msiof: Fix handling of write value for SISTR register

Gaku Inami <gaku.inami.xw@bp.renesas.com>
    spi: sh-msiof: Fix invalid SPI use during system suspend

Marcel Ziswiler <marcel.ziswiler@toradex.com>
    spi: tegra20-slink: explicitly enable/disable clock

Christophe Leroy <christophe.leroy@c-s.fr>
    serial: cpm_uart: return immediately from console poll

Stefan Agner <stefan@agner.ch>
    tty: serial: lpuart: avoid leaking struct tty_struct

Andy Whitcroft <apw@canonical.com>
    floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl

Kevin Hilman <khilman@baylibre.com>
    ARM: dts: dra7: fix DCAN node addresses

Johan Hovold <johan@kernel.org>
    EDAC: Fix memleak in module init error path

J. Bruce Fields <bfields@redhat.com>
    nfsd: fix corrupted reply to badly ordered compound

Nadav Amit <namit@vmware.com>
    gpio: Fix wrong rounding in gpio-menz127

Jessica Yu <jeyu@kernel.org>
    module: exclude SHN_UNDEF symbols from kallsyms api

Liam Girdwood <liam.r.girdwood@linux.intel.com>
    ASoC: dapm: Fix potential DAI widget pointer deref when linking DAIs

Johan Hovold <johan@kernel.org>
    EDAC, i7core: Fix memleaks and use-after-free on probe and remove

Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
    scsi: megaraid_sas: Update controller info during resume

Zhouyang Jia <jiazhouyang09@gmail.com>
    scsi: bnx2i: add error handling for ioremap_nocache

Kan Liang <kan.liang@linux.intel.com>
    perf/x86/intel/lbr: Fix incomplete LBR call stack

Zhouyang Jia <jiazhouyang09@gmail.com>
    HID: hid-ntrig: add error handling for sysfs_create_group

Ethan Tuttle <ethan@ethantuttle.com>
    ARM: mvebu: declare asm symbols as character arrays in pmsu.c

Tony Lindgren <tony@atomide.com>
    wlcore: Add missing PM call for wlcore_cmd_wait_for_event_or_timeout()

Dan Carpenter <dan.carpenter@oracle.com>
    rndis_wlan: potential buffer overflow in rndis_wlan_auth_indication()

Jernej Skrabec <jernej.skrabec@siol.net>
    drm/sun4i: Fix releasing node when enumerating enpoints

Brandon Maier <brandon.maier@rockwellcollins.com>
    net: phy: xgmiitorgmii: Check phy_driver ready before accessing

Ben Greear <greearb@candelatech.com>
    ath10k: protect ath10k_htt_rx_ring_free with rx_ring.lock

Brandon Maier <brandon.maier@rockwellcollins.com>
    net: phy: xgmiitorgmii: Check read_status results

Kai-Heng Feng <kai.heng.feng@canonical.com>
    ALSA: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge

Zhouyang Jia <jiazhouyang09@gmail.com>
    media: tm6000: add error handling for dvb_register_adapter

Zhouyang Jia <jiazhouyang09@gmail.com>
    drivers/tty: add error handling for pcmcia_loop_config

Alistair Strachan <astrachan@google.com>
    staging: android: ashmem: Fix mmap size validation

Javier Martinez Canillas <javierm@redhat.com>
    media: omap3isp: zero-initialize the isp cam_xclk{a,b} initial data

Akinobu Mita <akinobu.mita@gmail.com>
    media: soc_camera: ov772x: correct setting of banding filter

Akinobu Mita <akinobu.mita@gmail.com>
    media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power

Nicholas Mc Guire <hofrat@osadl.org>
    ALSA: snd-aoa: add of_node_put() in error path

Vasily Gorbik <gor@linux.ibm.com>
    s390/extmem: fix gcc 8 stringop-overflow warning

Thomas Gleixner <tglx@linutronix.de>
    alarmtimer: Prevent overflow for relative nanosleep

Alexey Kardashevskiy <aik@ozlabs.ru>
    powerpc/powernv/ioda2: Reduce upper limit for DMA window size

Julia Lawall <Julia.Lawall@lip6.fr>
    usb: wusbcore: security: cast sizeof to int for comparison

Breno Leitao <leitao@debian.org>
    scsi: ibmvscsi: Improve strings handling

Bart Van Assche <bart.vanassche@wdc.com>
    scsi: klist: Make it safe to use klists in atomic context

Bart Van Assche <bart.vanassche@wdc.com>
    scsi: target/iscsi: Make iscsit_ta_authentication() respect the output buffer size

Jan Beulich <JBeulich@suse.com>
    x86/entry/64: Add two more instruction suffixes

Dave Gerlach <d-gerlach@ti.com>
    ARM: hwmod: RTC: Don't assume lock/unlock will be called with irq enabled

Andy Shevchenko <andriy.shevchenko@linux.intel.com>
    x86/tsc: Add missing header to tsc_msr.c

Alexey Khoroshilov <khoroshilov@ispras.ru>
    media: fsl-viu: fix error handling in viu_of_probe()

Hari Bathini <hbathini@linux.ibm.com>
    powerpc/kdump: Handle crashkernel memory reservation failure

Sylwester Nawrocki <s.nawrocki@samsung.com>
    media: exynos4-is: Prevent NULL pointer dereference in __isp_video_try_fmt()

Dan Carpenter <dan.carpenter@oracle.com>
    IB/core: type promotion bug in rdma_rw_init_one_mr()

Guoqing Jiang <gqjiang@suse.com>
    md-cluster: clear another node's suspend_area after the copy is finished

Benjamin Tissoires <benjamin.tissoires@redhat.com>
    power: remove possible deadlock when unregistering power_supply

Vasily Gorbik <gor@linux.ibm.com>
    s390/mm: correct allocate_pgste proc_handler callback

Michael Scott <michael@opensourcefoundries.com>
    6lowpan: iphc: reset mac_header after decompress to fix panic

Johan Hovold <johan@kernel.org>
    USB: serial: kobil_sct: fix modem-status error handling

Jian-Hong Pan <jian-hong@endlessm.com>
    Bluetooth: Add a new Realtek 8723DE ID 0bda:b009

Zhen Lei <thunder.leizhen@huawei.com>
    iommu/amd: make sure TLB to be flushed before IOVA freed

Sudeep Holla <sudeep.holla@arm.com>
    power: vexpress: fix corruption in notifier registration

Anton Vasilyev <vasilyev@ispras.ru>
    uwb: hwa-rc: fix memory leak at probe

Colin Ian King <colin.king@canonical.com>
    staging: rts5208: fix missing error check on call to rtsx_write_register

Dan Williams <dan.j.williams@intel.com>
    x86/numa_emulation: Fix emulated-to-physical node mapping

Dan Carpenter <dan.carpenter@oracle.com>
    vmci: type promotion bug in qp_host_get_user_memory()

Matt Ranostay <matt.ranostay@konsulko.com>
    tsl2550: fix lux1_input error in low light

Stafford Horne <shorne@gmail.com>
    crypto: skcipher - Fix -Wstringop-truncation warnings


-------------

Diffstat:

 Documentation/hwmon/ina2xx                         |  2 +-
 Makefile                                           |  4 +-
 arch/arm/boot/dts/dra7.dtsi                        |  4 +-
 arch/arm/mach-mvebu/pmsu.c                         |  6 +-
 arch/arm/mach-omap2/omap_hwmod_reset.c             | 12 ++-
 arch/arm64/kvm/guest.c                             | 45 ++++++++++
 arch/powerpc/kernel/machine_kexec.c                |  7 +-
 arch/powerpc/platforms/powernv/pci-ioda.c          |  2 +-
 arch/s390/mm/extmem.c                              |  4 +-
 arch/s390/mm/pgalloc.c                             |  2 +-
 arch/x86/entry/entry_64.S                          |  4 +-
 arch/x86/events/intel/lbr.c                        | 32 ++++++--
 arch/x86/events/perf_event.h                       |  1 +
 arch/x86/kernel/tsc_msr.c                          |  1 +
 arch/x86/mm/numa_emulation.c                       |  2 +-
 crypto/ablkcipher.c                                |  2 +
 crypto/blkcipher.c                                 |  1 +
 drivers/block/floppy.c                             |  3 +
 drivers/bluetooth/btusb.c                          |  1 +
 drivers/edac/edac_mc_sysfs.c                       |  6 +-
 drivers/edac/i7core_edac.c                         | 22 +++--
 drivers/gpio/gpio-menz127.c                        |  4 +-
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c              | 11 ++-
 drivers/gpu/drm/amd/amdgpu/kv_dpm.c                |  4 +-
 drivers/gpu/drm/amd/amdgpu/si_dpm.c                |  3 +-
 drivers/gpu/drm/sun4i/sun4i_drv.c                  |  3 +-
 drivers/hid/hid-ntrig.c                            |  2 +
 drivers/hwmon/adt7475.c                            | 14 ++--
 drivers/hwmon/ina2xx.c                             | 13 ++-
 drivers/i2c/busses/i2c-i801.c                      |  9 +-
 drivers/infiniband/core/rw.c                       |  2 +-
 drivers/infiniband/hw/hfi1/pio.c                   |  9 +-
 drivers/infiniband/hw/hfi1/user_sdma.c             |  2 +-
 drivers/infiniband/hw/hfi1/verbs.c                 |  8 +-
 drivers/infiniband/ulp/srp/ib_srp.c                |  6 +-
 drivers/input/mouse/elantech.c                     |  2 +
 drivers/iommu/amd_iommu.c                          |  2 +-
 drivers/md/md-cluster.c                            | 19 +++--
 drivers/media/i2c/soc_camera/ov772x.c              |  2 +-
 drivers/media/platform/exynos4-is/fimc-isp-video.c | 11 ++-
 drivers/media/platform/fsl-viu.c                   | 38 +++++----
 drivers/media/platform/omap3isp/isp.c              |  2 +-
 drivers/media/platform/s3c-camif/camif-capture.c   |  2 +
 drivers/media/usb/tm6000/tm6000-dvb.c              |  5 ++
 drivers/media/usb/uvc/uvc_video.c                  | 24 ++++--
 drivers/misc/tsl2550.c                             |  2 +-
 drivers/misc/vmw_vmci/vmci_queue_pair.c            |  4 +-
 drivers/net/ethernet/hisilicon/hns/hnae.h          |  6 +-
 drivers/net/ethernet/hisilicon/hns/hns_enet.c      |  2 +-
 drivers/net/ethernet/intel/e1000/e1000_ethtool.c   |  7 +-
 drivers/net/ethernet/qlogic/qed/qed_mcp.c          | 96 ++++++++++++++++++----
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h     |  1 +
 drivers/net/phy/xilinx_gmii2rgmii.c                | 10 ++-
 drivers/net/wireless/ath/ath10k/htt_rx.c           |  5 +-
 drivers/net/wireless/rndis_wlan.c                  |  2 +
 drivers/net/wireless/ti/wlcore/cmd.c               |  6 ++
 drivers/power/reset/vexpress-poweroff.c            | 12 ++-
 drivers/power/supply/power_supply_core.c           | 11 ++-
 drivers/regulator/core.c                           |  2 +-
 drivers/scsi/bnx2i/bnx2i_hwi.c                     |  2 +
 drivers/scsi/ibmvscsi/ibmvscsi.c                   |  4 +-
 drivers/scsi/megaraid/megaraid_sas_base.c          |  3 +
 drivers/spi/spi-rspi.c                             | 34 +++++++-
 drivers/spi/spi-sh-msiof.c                         | 28 ++++++-
 drivers/spi/spi-tegra20-slink.c                    | 31 +++++--
 drivers/staging/android/ashmem.c                   |  6 ++
 drivers/staging/rts5208/sd.c                       |  2 +-
 drivers/target/iscsi/iscsi_target_auth.c           | 15 +---
 drivers/target/iscsi/iscsi_target_tpg.c            |  3 +-
 drivers/thermal/of-thermal.c                       |  7 +-
 drivers/tty/serial/8250/serial_cs.c                |  6 +-
 drivers/tty/serial/cpm_uart/cpm_uart_core.c        | 10 ++-
 drivers/tty/serial/fsl_lpuart.c                    |  3 +-
 drivers/tty/serial/imx.c                           |  8 ++
 drivers/usb/class/cdc-wdm.c                        |  2 +-
 drivers/usb/core/devio.c                           | 24 +++++-
 drivers/usb/core/driver.c                          | 28 +++----
 drivers/usb/core/usb.c                             |  2 +
 drivers/usb/serial/kobil_sct.c                     | 12 ++-
 drivers/usb/wusbcore/security.c                    |  2 +-
 drivers/uwb/hwa-rc.c                               |  1 +
 fs/ext4/xattr.c                                    |  5 ++
 fs/nfsd/nfs4proc.c                                 |  1 +
 include/linux/arm-smccc.h                          | 38 +++++----
 include/linux/platform_data/ina2xx.h               |  2 +-
 include/linux/power_supply.h                       |  1 +
 include/linux/slub_def.h                           |  3 +-
 kernel/module.c                                    |  6 +-
 kernel/time/alarmtimer.c                           |  3 +-
 lib/klist.c                                        | 10 ++-
 mm/slub.c                                          |  6 +-
 net/6lowpan/iphc.c                                 |  1 +
 sound/aoa/core/gpio-feature.c                      |  4 +-
 sound/pci/hda/hda_intel.c                          |  3 +-
 sound/soc/soc-dapm.c                               |  7 ++
 95 files changed, 630 insertions(+), 219 deletions(-)

[PATCH 4.9 01/94] crypto: skcipher - Fix -Wstringop-truncation warnings

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stafford Horne <shorne@gmail.com>

[ Upstream commit cefd769fd0192c84d638f66da202459ed8ad63ba ]

As of GCC 9.0.0 the build is reporting warnings like:

    crypto/ablkcipher.c: In function ‘crypto_ablkcipher_report’:
    crypto/ablkcipher.c:374:2: warning: ‘strncpy’ specified bound 64 equals destination size [-Wstringop-truncation]
      strncpy(rblkcipher.geniv, alg->cra_ablkcipher.geniv ?: "<default>",
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       sizeof(rblkcipher.geniv));
       ~~~~~~~~~~~~~~~~~~~~~~~~~

This means the strnycpy might create a non null terminated string.  Fix this by
explicitly performing '\0' termination.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Eric Biggers <ebiggers3@gmail.com>
Cc: Nick Desaulniers <nick.desaulniers@gmail.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 crypto/ablkcipher.c |    2 ++
 crypto/blkcipher.c  |    1 +
 2 files changed, 3 insertions(+)

--- a/crypto/ablkcipher.c
+++ b/crypto/ablkcipher.c
@@ -367,6 +367,7 @@ static int crypto_ablkcipher_report(stru
 	strncpy(rblkcipher.type, "ablkcipher", sizeof(rblkcipher.type));
 	strncpy(rblkcipher.geniv, alg->cra_ablkcipher.geniv ?: "<default>",
 		sizeof(rblkcipher.geniv));
+	rblkcipher.geniv[sizeof(rblkcipher.geniv) - 1] = '\0';
 
 	rblkcipher.blocksize = alg->cra_blocksize;
 	rblkcipher.min_keysize = alg->cra_ablkcipher.min_keysize;
@@ -441,6 +442,7 @@ static int crypto_givcipher_report(struc
 	strncpy(rblkcipher.type, "givcipher", sizeof(rblkcipher.type));
 	strncpy(rblkcipher.geniv, alg->cra_ablkcipher.geniv ?: "<built-in>",
 		sizeof(rblkcipher.geniv));
+	rblkcipher.geniv[sizeof(rblkcipher.geniv) - 1] = '\0';
 
 	rblkcipher.blocksize = alg->cra_blocksize;
 	rblkcipher.min_keysize = alg->cra_ablkcipher.min_keysize;
--- a/crypto/blkcipher.c
+++ b/crypto/blkcipher.c
@@ -510,6 +510,7 @@ static int crypto_blkcipher_report(struc
 	strncpy(rblkcipher.type, "blkcipher", sizeof(rblkcipher.type));
 	strncpy(rblkcipher.geniv, alg->cra_blkcipher.geniv ?: "<default>",
 		sizeof(rblkcipher.geniv));
+	rblkcipher.geniv[sizeof(rblkcipher.geniv) - 1] = '\0';
 
 	rblkcipher.blocksize = alg->cra_blocksize;
 	rblkcipher.min_keysize = alg->cra_blkcipher.min_keysize;

[PATCH 4.9 02/94] tsl2550: fix lux1_input error in low light

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matt Ranostay <matt.ranostay@konsulko.com>

[ Upstream commit ce054546cc2c26891cefa2f284d90d93b52205de ]

ADC channel 0 photodiode detects both infrared + visible light,
but ADC channel 1 just detects infrared. However, the latter is a bit
more sensitive in that range so complete darkness or low light causes
a error condition in which the chan0 - chan1 is negative that
results in a -EAGAIN.

This patch changes the resulting lux1_input sysfs attribute message from
"Resource temporarily unavailable" to a user-grokable lux value of 0.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/tsl2550.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/misc/tsl2550.c
+++ b/drivers/misc/tsl2550.c
@@ -177,7 +177,7 @@ static int tsl2550_calculate_lux(u8 ch0,
 		} else
 			lux = 0;
 	else
-		return -EAGAIN;
+		return 0;
 
 	/* LUX range check */
 	return lux > TSL2550_MAX_LUX ? TSL2550_MAX_LUX : lux;

[PATCH 4.9 03/94] vmci: type promotion bug in qp_host_get_user_memory()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 7fb2fd4e25fc1fb10dcb30b5519de257cfeae84c ]

The problem is that if get_user_pages_fast() fails and returns a
negative error code, it gets type promoted to a high positive value and
treated as a success.

Fixes: 06164d2b72aa ("VMCI: queue pairs implementation.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/vmw_vmci/vmci_queue_pair.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/misc/vmw_vmci/vmci_queue_pair.c
+++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c
@@ -755,7 +755,7 @@ static int qp_host_get_user_memory(u64 p
 	retval = get_user_pages_fast((uintptr_t) produce_uva,
 				     produce_q->kernel_if->num_pages, 1,
 				     produce_q->kernel_if->u.h.header_page);
-	if (retval < produce_q->kernel_if->num_pages) {
+	if (retval < (int)produce_q->kernel_if->num_pages) {
 		pr_debug("get_user_pages_fast(produce) failed (retval=%d)",
 			retval);
 		qp_release_pages(produce_q->kernel_if->u.h.header_page,
@@ -767,7 +767,7 @@ static int qp_host_get_user_memory(u64 p
 	retval = get_user_pages_fast((uintptr_t) consume_uva,
 				     consume_q->kernel_if->num_pages, 1,
 				     consume_q->kernel_if->u.h.header_page);
-	if (retval < consume_q->kernel_if->num_pages) {
+	if (retval < (int)consume_q->kernel_if->num_pages) {
 		pr_debug("get_user_pages_fast(consume) failed (retval=%d)",
 			retval);
 		qp_release_pages(consume_q->kernel_if->u.h.header_page,

[PATCH 4.9 04/94] x86/numa_emulation: Fix emulated-to-physical node mapping

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Williams <dan.j.williams@intel.com>

[ Upstream commit 3b6c62f363a19ce82bf378187ab97c9dc01e3927 ]

Without this change the distance table calculation for emulated nodes
may use the wrong numa node and report an incorrect distance.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/153089328103.27680.14778434392225818887.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/mm/numa_emulation.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -60,7 +60,7 @@ static int __init emu_setup_memblk(struc
 	eb->nid = nid;
 
 	if (emu_nid_to_phys[nid] == NUMA_NO_NODE)
-		emu_nid_to_phys[nid] = nid;
+		emu_nid_to_phys[nid] = pb->nid;
 
 	pb->start += size;
 	if (pb->start >= pb->end) {

[PATCH 4.9 05/94] staging: rts5208: fix missing error check on call to rtsx_write_register

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit c5fae4f4fd28189b1062fb8ef7b21fec37cb8b17 ]

Currently the check on error return from the call to rtsx_write_register
is checking the error status from the previous call. Fix this by adding
in the missing assignment of retval.

Detected by CoverityScan, CID#709877

Fixes: fa590c222fba ("staging: rts5208: add support for rts5208 and rts5288")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rts5208/sd.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/rts5208/sd.c
+++ b/drivers/staging/rts5208/sd.c
@@ -4976,7 +4976,7 @@ int sd_execute_write_data(struct scsi_cm
 			goto SD_Execute_Write_Cmd_Failed;
 		}
 
-		rtsx_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
+		retval = rtsx_write_register(chip, SD_BYTE_CNT_L, 0xFF, 0x00);
 		if (retval != STATUS_SUCCESS) {
 			rtsx_trace(chip);
 			goto SD_Execute_Write_Cmd_Failed;

[PATCH 4.9 06/94] uwb: hwa-rc: fix memory leak at probe

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anton Vasilyev <vasilyev@ispras.ru>

[ Upstream commit 11b71782c1d10d9bccc31825cf84291cd7588a1e ]

hwarc_probe() allocates memory for hwarc, but does not free it
if uwb_rc_add() or hwarc_get_version() fail.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uwb/hwa-rc.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/uwb/hwa-rc.c
+++ b/drivers/uwb/hwa-rc.c
@@ -873,6 +873,7 @@ error_get_version:
 error_rc_add:
 	usb_put_intf(iface);
 	usb_put_dev(hwarc->usb_dev);
+	kfree(hwarc);
 error_alloc:
 	uwb_rc_put(uwb_rc);
 error_rc_alloc:

[PATCH 4.9 07/94] power: vexpress: fix corruption in notifier registration

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sudeep Holla <sudeep.holla@arm.com>

[ Upstream commit 09bebb1adb21ecd04adf7ccb3b06f73e3a851e93 ]

Vexpress platforms provide two different restart handlers: SYS_REBOOT
that restart the entire system, while DB_RESET only restarts the
daughter board containing the CPU. DB_RESET is overridden by SYS_REBOOT
if it exists.

notifier_chain_register used in register_restart_handler by design
relies on notifiers to be registered once only, however vexpress restart
notifier can get registered twice. When this happen it corrupts list
of notifiers, as result some notifiers can be not called on proper
event, traverse on list can be cycled forever, and second unregister
can access already freed memory.

So far, since this was the only restart handler in the system, no issue
was observed even if the same notifier was registered twice. However
commit 6c5c0d48b686 ("watchdog: sp805: add restart handler") added
support for SP805 restart handlers and since the system under test
contains two vexpress restart and two SP805 watchdog instances, it was
observed that during the boot traversing the restart handler list looped
forever as there's a cycle in that list resulting in boot hang.

This patch fixes the issues by ensuring that the notifier is installed
only once.

Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Fixes: 46c99ac66222 ("power/reset: vexpress: Register with kernel restart handler")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/reset/vexpress-poweroff.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

--- a/drivers/power/reset/vexpress-poweroff.c
+++ b/drivers/power/reset/vexpress-poweroff.c
@@ -35,6 +35,7 @@ static void vexpress_reset_do(struct dev
 }
 
 static struct device *vexpress_power_off_device;
+static atomic_t vexpress_restart_nb_refcnt = ATOMIC_INIT(0);
 
 static void vexpress_power_off(void)
 {
@@ -99,10 +100,13 @@ static int _vexpress_register_restart_ha
 	int err;
 
 	vexpress_restart_device = dev;
-	err = register_restart_handler(&vexpress_restart_nb);
-	if (err) {
-		dev_err(dev, "cannot register restart handler (err=%d)\n", err);
-		return err;
+	if (atomic_inc_return(&vexpress_restart_nb_refcnt) == 1) {
+		err = register_restart_handler(&vexpress_restart_nb);
+		if (err) {
+			dev_err(dev, "cannot register restart handler (err=%d)\n", err);
+			atomic_dec(&vexpress_restart_nb_refcnt);
+			return err;
+		}
 	}
 	device_create_file(dev, &dev_attr_active);
 

[PATCH 4.9 08/94] iommu/amd: make sure TLB to be flushed before IOVA freed

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhen Lei <thunder.leizhen@huawei.com>

[ Upstream commit 3c120143f584360a13614787e23ae2cdcb5e5ccd ]

Although the mapping has already been removed in the page table, it maybe
still exist in TLB. Suppose the freed IOVAs is reused by others before the
flush operation completed, the new user can not correctly access to its
meomory.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Fixes: b1516a14657a ('iommu/amd: Implement flush queue')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iommu/amd_iommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2452,9 +2452,9 @@ static void __unmap_single(struct dma_op
 	}
 
 	if (amd_iommu_unmap_flush) {
-		dma_ops_free_iova(dma_dom, dma_addr, pages);
 		domain_flush_tlb(&dma_dom->domain);
 		domain_flush_complete(&dma_dom->domain);
+		dma_ops_free_iova(dma_dom, dma_addr, pages);
 	} else {
 		queue_add(dma_dom, dma_addr, pages);
 	}

[PATCH 4.9 09/94] Bluetooth: Add a new Realtek 8723DE ID 0bda:b009

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jian-Hong Pan <jian-hong@endlessm.com>

[ Upstream commit 45ae68b8cfc25bdbffc11248001c47ab1b76ff6e ]

Without this patch we cannot turn on the Bluethooth adapter on HP
14-bs007la.

T:  Bus=01 Lev=02 Prnt=03 Port=00 Cnt=01 Dev#=  4 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0bda ProdID=b009 Rev= 2.00
S:  Manufacturer=Realtek
S:  Product=802.11n WLAN Adapter
S:  SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bluetooth/btusb.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -349,6 +349,7 @@ static const struct usb_device_id blackl
 	{ USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 
 	/* Additional Realtek 8723DE Bluetooth devices */
+	{ USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 	{ USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 
 	/* Additional Realtek 8821AE Bluetooth devices */

[PATCH 4.9 10/94] USB: serial: kobil_sct: fix modem-status error handling

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan@kernel.org>

[ Upstream commit a420b5d939ee58f1d950f0ea782834056520aeaa ]

Make sure to return -EIO in case of a short modem-status read request.

While at it, split the debug message to not include the (zeroed)
transfer-buffer content in case of errors.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/kobil_sct.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -408,12 +408,20 @@ static int kobil_tiocmget(struct tty_str
 			  transfer_buffer_length,
 			  KOBIL_TIMEOUT);
 
-	dev_dbg(&port->dev, "%s - Send get_status_line_state URB returns: %i. Statusline: %02x\n",
-		__func__, result, transfer_buffer[0]);
+	dev_dbg(&port->dev, "Send get_status_line_state URB returns: %i\n",
+			result);
+	if (result < 1) {
+		if (result >= 0)
+			result = -EIO;
+		goto out_free;
+	}
+
+	dev_dbg(&port->dev, "Statusline: %02x\n", transfer_buffer[0]);
 
 	result = 0;
 	if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0)
 		result = TIOCM_DSR;
+out_free:
 	kfree(transfer_buffer);
 	return result;
 }

[PATCH 4.9 11/94] 6lowpan: iphc: reset mac_header after decompress to fix panic

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Michael Scott <michael@opensourcefoundries.com>

[ Upstream commit 03bc05e1a4972f73b4eb8907aa373369e825c252 ]

After decompression of 6lowpan socket data, an IPv6 header is inserted
before the existing socket payload.  After this, we reset the
network_header value of the skb to account for the difference in payload
size from prior to decompression + the addition of the IPv6 header.

However, we fail to reset the mac_header value.

Leaving the mac_header value untouched here, can cause a calculation
error in net/packet/af_packet.c packet_rcv() function when an
AF_PACKET socket is opened in SOCK_RAW mode for use on a 6lowpan
interface.

On line 2088, the data pointer is moved backward by the value returned
from skb_mac_header().  If skb->data is adjusted so that it is before
the skb->head pointer (which can happen when an old value of mac_header
is left in place) the kernel generates a panic in net/core/skbuff.c
line 1717.

This panic can be generated by BLE 6lowpan interfaces (such as bt0) and
802.15.4 interfaces (such as lowpan0) as they both use the same 6lowpan
sources for compression and decompression.

Signed-off-by: Michael Scott <michael@opensourcefoundries.com>
Acked-by: Alexander Aring <aring@mojatatu.com>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/6lowpan/iphc.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/6lowpan/iphc.c
+++ b/net/6lowpan/iphc.c
@@ -745,6 +745,7 @@ int lowpan_header_decompress(struct sk_b
 		hdr.hop_limit, &hdr.daddr);
 
 	skb_push(skb, sizeof(hdr));
+	skb_reset_mac_header(skb);
 	skb_reset_network_header(skb);
 	skb_copy_to_linear_data(skb, &hdr, sizeof(hdr));
 

[PATCH 4.9 12/94] s390/mm: correct allocate_pgste proc_handler callback

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vasily Gorbik <gor@linux.ibm.com>

[ Upstream commit 5bedf8aa03c28cb8dc98bdd32a41b66d8f7d3eaa ]

Since proc_dointvec does not perform value range control,
proc_dointvec_minmax should be used to limit value range, which is
clearly intended here, as the internal representation of the value:

unsigned int alloc_pgste:1;

In fact it currently works, since we have

      mm->context.alloc_pgste = page_table_allocate_pgste || ...

... since commit 23fefe119ceb5 ("s390/kvm: avoid global config of vm.alloc_pgste=1")

Before that it was

       mm->context.alloc_pgste = page_table_allocate_pgste;

which was broken. That was introduced with commit 0b46e0a3ec0d7 ("s390/kvm:
remove delayed reallocation of page tables for KVM").

Fixes: 0b46e0a3ec0d7 ("s390/kvm: remove delayed reallocation of page tables for KVM")
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/mm/pgalloc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -26,7 +26,7 @@ static struct ctl_table page_table_sysct
 		.data		= &page_table_allocate_pgste,
 		.maxlen		= sizeof(int),
 		.mode		= S_IRUGO | S_IWUSR,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
 		.extra1		= &page_table_allocate_pgste_min,
 		.extra2		= &page_table_allocate_pgste_max,
 	},

[PATCH 4.9 13/94] power: remove possible deadlock when unregistering power_supply

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Benjamin Tissoires <benjamin.tissoires@redhat.com>

[ Upstream commit 3ffa6583e24e1ad1abab836d24bfc9d2308074e5 ]

If a device gets removed right after having registered a power_supply node,
we might enter in a deadlock between the remove call (that has a lock on
the parent device) and the deferred register work.

Allow the deferred register work to exit without taking the lock when
we are in the remove state.

Stack trace on a Ubuntu 16.04:

[16072.109121] INFO: task kworker/u16:2:1180 blocked for more than 120 seconds.
[16072.109127]       Not tainted 4.13.0-41-generic #46~16.04.1-Ubuntu
[16072.109129] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16072.109132] kworker/u16:2   D    0  1180      2 0x80000000
[16072.109142] Workqueue: events_power_efficient power_supply_deferred_register_work
[16072.109144] Call Trace:
[16072.109152]  __schedule+0x3d6/0x8b0
[16072.109155]  schedule+0x36/0x80
[16072.109158]  schedule_preempt_disabled+0xe/0x10
[16072.109161]  __mutex_lock.isra.2+0x2ab/0x4e0
[16072.109166]  __mutex_lock_slowpath+0x13/0x20
[16072.109168]  ? __mutex_lock_slowpath+0x13/0x20
[16072.109171]  mutex_lock+0x2f/0x40
[16072.109174]  power_supply_deferred_register_work+0x2b/0x50
[16072.109179]  process_one_work+0x15b/0x410
[16072.109182]  worker_thread+0x4b/0x460
[16072.109186]  kthread+0x10c/0x140
[16072.109189]  ? process_one_work+0x410/0x410
[16072.109191]  ? kthread_create_on_node+0x70/0x70
[16072.109194]  ret_from_fork+0x35/0x40
[16072.109199] INFO: task test:2257 blocked for more than 120 seconds.
[16072.109202]       Not tainted 4.13.0-41-generic #46~16.04.1-Ubuntu
[16072.109204] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[16072.109206] test            D    0  2257   2256 0x00000004
[16072.109208] Call Trace:
[16072.109211]  __schedule+0x3d6/0x8b0
[16072.109215]  schedule+0x36/0x80
[16072.109218]  schedule_timeout+0x1f3/0x360
[16072.109221]  ? check_preempt_curr+0x5a/0xa0
[16072.109224]  ? ttwu_do_wakeup+0x1e/0x150
[16072.109227]  wait_for_completion+0xb4/0x140
[16072.109230]  ? wait_for_completion+0xb4/0x140
[16072.109233]  ? wake_up_q+0x70/0x70
[16072.109236]  flush_work+0x129/0x1e0
[16072.109240]  ? worker_detach_from_pool+0xb0/0xb0
[16072.109243]  __cancel_work_timer+0x10f/0x190
[16072.109247]  ? device_del+0x264/0x310
[16072.109250]  ? __wake_up+0x44/0x50
[16072.109253]  cancel_delayed_work_sync+0x13/0x20
[16072.109257]  power_supply_unregister+0x37/0xb0
[16072.109260]  devm_power_supply_release+0x11/0x20
[16072.109263]  release_nodes+0x110/0x200
[16072.109266]  devres_release_group+0x7c/0xb0
[16072.109274]  wacom_remove+0xc2/0x110 [wacom]
[16072.109279]  hid_device_remove+0x6e/0xd0 [hid]
[16072.109284]  device_release_driver_internal+0x158/0x210
[16072.109288]  device_release_driver+0x12/0x20
[16072.109291]  bus_remove_device+0xec/0x160
[16072.109293]  device_del+0x1de/0x310
[16072.109298]  hid_destroy_device+0x27/0x60 [hid]
[16072.109303]  usbhid_disconnect+0x51/0x70 [usbhid]
[16072.109308]  usb_unbind_interface+0x77/0x270
[16072.109311]  device_release_driver_internal+0x158/0x210
[16072.109315]  device_release_driver+0x12/0x20
[16072.109318]  usb_driver_release_interface+0x77/0x80
[16072.109321]  proc_ioctl+0x20f/0x250
[16072.109325]  usbdev_do_ioctl+0x57f/0x1140
[16072.109327]  ? __wake_up+0x44/0x50
[16072.109331]  usbdev_ioctl+0xe/0x20
[16072.109336]  do_vfs_ioctl+0xa4/0x600
[16072.109339]  ? vfs_write+0x15a/0x1b0
[16072.109343]  SyS_ioctl+0x79/0x90
[16072.109347]  entry_SYSCALL_64_fastpath+0x24/0xab
[16072.109349] RIP: 0033:0x7f20da807f47
[16072.109351] RSP: 002b:00007ffc422ae398 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[16072.109353] RAX: ffffffffffffffda RBX: 00000000010b8560 RCX: 00007f20da807f47
[16072.109355] RDX: 00007ffc422ae3a0 RSI: 00000000c0105512 RDI: 0000000000000009
[16072.109356] RBP: 0000000000000000 R08: 00007ffc422ae3e0 R09: 0000000000000010
[16072.109357] R10: 00000000000000a6 R11: 0000000000000246 R12: 0000000000000000
[16072.109359] R13: 00000000010b8560 R14: 00007ffc422ae2e0 R15: 0000000000000000

Reported-and-tested-by: Richard Hughes <rhughes@redhat.com>
Tested-by: Aaron Skomra <Aaron.Skomra@wacom.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Fixes: 7f1a57fdd6cb ("power_supply: Fix possible NULL pointer dereference on early uevent")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/power/supply/power_supply_core.c |   11 +++++++++--
 include/linux/power_supply.h             |    1 +
 2 files changed, 10 insertions(+), 2 deletions(-)

--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/notifier.h>
 #include <linux/err.h>
@@ -138,8 +139,13 @@ static void power_supply_deferred_regist
 	struct power_supply *psy = container_of(work, struct power_supply,
 						deferred_register_work.work);
 
-	if (psy->dev.parent)
-		mutex_lock(&psy->dev.parent->mutex);
+	if (psy->dev.parent) {
+		while (!mutex_trylock(&psy->dev.parent->mutex)) {
+			if (psy->removing)
+				return;
+			msleep(10);
+		}
+	}
 
 	power_supply_changed(psy);
 
@@ -944,6 +950,7 @@ EXPORT_SYMBOL_GPL(devm_power_supply_regi
 void power_supply_unregister(struct power_supply *psy)
 {
 	WARN_ON(atomic_dec_return(&psy->use_cnt));
+	psy->removing = true;
 	cancel_work_sync(&psy->changed_work);
 	cancel_delayed_work_sync(&psy->deferred_register_work);
 	sysfs_remove_link(&psy->dev.kobj, "powers");
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -249,6 +249,7 @@ struct power_supply {
 	spinlock_t changed_lock;
 	bool changed;
 	bool initialized;
+	bool removing;
 	atomic_t use_cnt;
 #ifdef CONFIG_THERMAL
 	struct thermal_zone_device *tzd;

[PATCH 4.9 14/94] md-cluster: clear another nodes suspend_area after the copy is finished

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Guoqing Jiang <gqjiang@suse.com>

[ Upstream commit 010228e4a932ca1e8365e3b58c8e1e44c16ff793 ]

When one node leaves cluster or stops the resyncing
(resync or recovery) array, then other nodes need to
call recover_bitmaps to continue the unfinished task.

But we need to clear suspend_area later after other
nodes copy the resync information to their bitmap
(by call bitmap_copy_from_slot). Otherwise, all nodes
could write to the suspend_area even the suspend_area
is not handled by any node, because area_resyncing
returns 0 at the beginning of raid1_write_request.
Which means one node could write suspend_area while
another node is resyncing the same area, then data
could be inconsistent.

So let's clear suspend_area later to avoid above issue
with the protection of bm lock. Also it is straightforward
to clear suspend_area after nodes have copied the resync
info to bitmap.

Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/md/md-cluster.c |   19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -302,15 +302,6 @@ static void recover_bitmaps(struct md_th
 	while (cinfo->recovery_map) {
 		slot = fls64((u64)cinfo->recovery_map) - 1;
 
-		/* Clear suspend_area associated with the bitmap */
-		spin_lock_irq(&cinfo->suspend_lock);
-		list_for_each_entry_safe(s, tmp, &cinfo->suspend_list, list)
-			if (slot == s->slot) {
-				list_del(&s->list);
-				kfree(s);
-			}
-		spin_unlock_irq(&cinfo->suspend_lock);
-
 		snprintf(str, 64, "bitmap%04d", slot);
 		bm_lockres = lockres_init(mddev, str, NULL, 1);
 		if (!bm_lockres) {
@@ -329,6 +320,16 @@ static void recover_bitmaps(struct md_th
 			pr_err("md-cluster: Could not copy data from bitmap %d\n", slot);
 			goto clear_bit;
 		}
+
+		/* Clear suspend_area associated with the bitmap */
+		spin_lock_irq(&cinfo->suspend_lock);
+		list_for_each_entry_safe(s, tmp, &cinfo->suspend_list, list)
+			if (slot == s->slot) {
+				list_del(&s->list);
+				kfree(s);
+			}
+		spin_unlock_irq(&cinfo->suspend_lock);
+
 		if (hi > 0) {
 			if (lo < mddev->recovery_cp)
 				mddev->recovery_cp = lo;

[PATCH 4.9 15/94] IB/core: type promotion bug in rdma_rw_init_one_mr()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit c2d7c8ff89b22ddefb1ac2986c0d48444a667689 ]

"nents" is an unsigned int, so if ib_map_mr_sg() returns a negative
error code then it's type promoted to a high unsigned int which is
treated as success.

Fixes: a060b5629ab0 ("IB/core: generic RDMA READ/WRITE API")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/infiniband/core/rw.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/core/rw.c
+++ b/drivers/infiniband/core/rw.c
@@ -87,7 +87,7 @@ static int rdma_rw_init_one_mr(struct ib
 	}
 
 	ret = ib_map_mr_sg(reg->mr, sg, nents, &offset, PAGE_SIZE);
-	if (ret < nents) {
+	if (ret < 0 || ret < nents) {
 		ib_mr_pool_put(qp, &qp->rdma_mrs, reg->mr);
 		return -EINVAL;
 	}

[PATCH 4.9 16/94] media: exynos4-is: Prevent NULL pointer dereference in __isp_video_try_fmt()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sylwester Nawrocki <s.nawrocki@samsung.com>

[ Upstream commit 7c1b9a5aeed91bef98988ac0fcf38c8c1f4f9a3a ]

This patch fixes potential NULL pointer dereference as indicated
by the following static checker warning:

drivers/media/platform/exynos4-is/fimc-isp-video.c:408 isp_video_try_fmt_mplane()
error: NULL dereference inside function '__isp_video_try_fmt(isp, &f->fmt.pix_mp, (0))()'.

Fixes: 34947b8aebe3: ("[media] exynos4-is: Add the FIMC-IS ISP capture DMA driver")

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/exynos4-is/fimc-isp-video.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

--- a/drivers/media/platform/exynos4-is/fimc-isp-video.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp-video.c
@@ -384,12 +384,17 @@ static void __isp_video_try_fmt(struct f
 				struct v4l2_pix_format_mplane *pixm,
 				const struct fimc_fmt **fmt)
 {
-	*fmt = fimc_isp_find_format(&pixm->pixelformat, NULL, 2);
+	const struct fimc_fmt *__fmt;
+
+	__fmt = fimc_isp_find_format(&pixm->pixelformat, NULL, 2);
+
+	if (fmt)
+		*fmt = __fmt;
 
 	pixm->colorspace = V4L2_COLORSPACE_SRGB;
 	pixm->field = V4L2_FIELD_NONE;
-	pixm->num_planes = (*fmt)->memplanes;
-	pixm->pixelformat = (*fmt)->fourcc;
+	pixm->num_planes = __fmt->memplanes;
+	pixm->pixelformat = __fmt->fourcc;
 	/*
 	 * TODO: double check with the docmentation these width/height
 	 * constraints are correct.

[PATCH 4.9 17/94] powerpc/kdump: Handle crashkernel memory reservation failure

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hari Bathini <hbathini@linux.ibm.com>

[ Upstream commit 8950329c4a64c6d3ca0bc34711a1afbd9ce05657 ]

Memory reservation for crashkernel could fail if there are holes around
kdump kernel offset (128M). Fail gracefully in such cases and print an
error message.

Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Tested-by: David Gibson <dgibson@redhat.com>
Reviewed-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kernel/machine_kexec.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -186,7 +186,12 @@ void __init reserve_crashkernel(void)
 			(unsigned long)(crashk_res.start >> 20),
 			(unsigned long)(memblock_phys_mem_size() >> 20));
 
-	memblock_reserve(crashk_res.start, crash_size);
+	if (!memblock_is_region_memory(crashk_res.start, crash_size) ||
+	    memblock_reserve(crashk_res.start, crash_size)) {
+		pr_err("Failed to reserve memory for crashkernel!\n");
+		crashk_res.start = crashk_res.end = 0;
+		return;
+	}
 }
 
 int overlaps_crashkernel(unsigned long start, unsigned long size)

[PATCH 4.9 18/94] media: fsl-viu: fix error handling in viu_of_probe()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexey Khoroshilov <khoroshilov@ispras.ru>

[ Upstream commit 662a99e145661c2b35155cf375044deae9b79896 ]

viu_of_probe() ignores fails in i2c_get_adapter(),
tries to unlock uninitialized mutex on error path.

The patch streamlining the error handling in viu_of_probe().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/fsl-viu.c |   38 +++++++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 15 deletions(-)

--- a/drivers/media/platform/fsl-viu.c
+++ b/drivers/media/platform/fsl-viu.c
@@ -1417,7 +1417,7 @@ static int viu_of_probe(struct platform_
 				     sizeof(struct viu_reg), DRV_NAME)) {
 		dev_err(&op->dev, "Error while requesting mem region\n");
 		ret = -EBUSY;
-		goto err;
+		goto err_irq;
 	}
 
 	/* remap registers */
@@ -1425,7 +1425,7 @@ static int viu_of_probe(struct platform_
 	if (!viu_regs) {
 		dev_err(&op->dev, "Can't map register set\n");
 		ret = -ENOMEM;
-		goto err;
+		goto err_irq;
 	}
 
 	/* Prepare our private structure */
@@ -1433,7 +1433,7 @@ static int viu_of_probe(struct platform_
 	if (!viu_dev) {
 		dev_err(&op->dev, "Can't allocate private structure\n");
 		ret = -ENOMEM;
-		goto err;
+		goto err_irq;
 	}
 
 	viu_dev->vr = viu_regs;
@@ -1449,16 +1449,21 @@ static int viu_of_probe(struct platform_
 	ret = v4l2_device_register(viu_dev->dev, &viu_dev->v4l2_dev);
 	if (ret < 0) {
 		dev_err(&op->dev, "v4l2_device_register() failed: %d\n", ret);
-		goto err;
+		goto err_irq;
 	}
 
 	ad = i2c_get_adapter(0);
+	if (!ad) {
+		ret = -EFAULT;
+		dev_err(&op->dev, "couldn't get i2c adapter\n");
+		goto err_v4l2;
+	}
 
 	v4l2_ctrl_handler_init(&viu_dev->hdl, 5);
 	if (viu_dev->hdl.error) {
 		ret = viu_dev->hdl.error;
 		dev_err(&op->dev, "couldn't register control\n");
-		goto err_vdev;
+		goto err_i2c;
 	}
 	/* This control handler will inherit the control(s) from the
 	   sub-device(s). */
@@ -1476,7 +1481,7 @@ static int viu_of_probe(struct platform_
 	vdev = video_device_alloc();
 	if (vdev == NULL) {
 		ret = -ENOMEM;
-		goto err_vdev;
+		goto err_hdl;
 	}
 
 	*vdev = viu_template;
@@ -1497,7 +1502,7 @@ static int viu_of_probe(struct platform_
 	ret = video_register_device(viu_dev->vdev, VFL_TYPE_GRABBER, -1);
 	if (ret < 0) {
 		video_device_release(viu_dev->vdev);
-		goto err_vdev;
+		goto err_unlock;
 	}
 
 	/* enable VIU clock */
@@ -1505,12 +1510,12 @@ static int viu_of_probe(struct platform_
 	if (IS_ERR(clk)) {
 		dev_err(&op->dev, "failed to lookup the clock!\n");
 		ret = PTR_ERR(clk);
-		goto err_clk;
+		goto err_vdev;
 	}
 	ret = clk_prepare_enable(clk);
 	if (ret) {
 		dev_err(&op->dev, "failed to enable the clock!\n");
-		goto err_clk;
+		goto err_vdev;
 	}
 	viu_dev->clk = clk;
 
@@ -1521,7 +1526,7 @@ static int viu_of_probe(struct platform_
 	if (request_irq(viu_dev->irq, viu_intr, 0, "viu", (void *)viu_dev)) {
 		dev_err(&op->dev, "Request VIU IRQ failed.\n");
 		ret = -ENODEV;
-		goto err_irq;
+		goto err_clk;
 	}
 
 	mutex_unlock(&viu_dev->lock);
@@ -1529,16 +1534,19 @@ static int viu_of_probe(struct platform_
 	dev_info(&op->dev, "Freescale VIU Video Capture Board\n");
 	return ret;
 
-err_irq:
-	clk_disable_unprepare(viu_dev->clk);
 err_clk:
-	video_unregister_device(viu_dev->vdev);
+	clk_disable_unprepare(viu_dev->clk);
 err_vdev:
-	v4l2_ctrl_handler_free(&viu_dev->hdl);
+	video_unregister_device(viu_dev->vdev);
+err_unlock:
 	mutex_unlock(&viu_dev->lock);
+err_hdl:
+	v4l2_ctrl_handler_free(&viu_dev->hdl);
+err_i2c:
 	i2c_put_adapter(ad);
+err_v4l2:
 	v4l2_device_unregister(&viu_dev->v4l2_dev);
-err:
+err_irq:
 	irq_dispose_mapping(viu_irq);
 	return ret;
 }

[PATCH 4.9 19/94] x86/tsc: Add missing header to tsc_msr.c

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

[ Upstream commit dbd0fbc76c77daac08ddd245afdcbade0d506e19 ]

Add a missing header otherwise compiler warns about missed prototype:

CC      arch/x86/kernel/tsc_msr.o
arch/x86/kernel/tsc_msr.c:73:15: warning: no previous prototype for ‘cpu_khz_from_msr’ [-Wmissing-prototypes]
   unsigned long cpu_khz_from_msr(void)
                 ^~~~~~~~~~~~~~~~

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Link: https://lkml.kernel.org/r/20180629193113.84425-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/tsc_msr.c |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/x86/kernel/tsc_msr.c
+++ b/arch/x86/kernel/tsc_msr.c
@@ -12,6 +12,7 @@
 #include <asm/setup.h>
 #include <asm/apic.h>
 #include <asm/param.h>
+#include <asm/tsc.h>
 
 #define MAX_NUM_FREQS	9
 

[PATCH 4.9 20/94] ARM: hwmod: RTC: Dont assume lock/unlock will be called with irq enabled

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dave Gerlach <d-gerlach@ti.com>

[ Upstream commit 6d609b35c815ba20132b7b64bcca04516bb17c56 ]

When the RTC lock and unlock functions were introduced it was likely
assumed that they would always be called from irq enabled context, hence
the use of local_irq_disable/enable. This is no longer true as the
RTC+DDR path makes a late call during the suspend path after irqs
have been disabled to enable the RTC hwmod which calls both unlock and
lock, leading to IRQs being reenabled through the local_irq_enable call
in omap_hwmod_rtc_lock call.

To avoid this change the local_irq_disable/enable to
local_irq_save/restore to ensure that from whatever context this is
called the proper IRQ configuration is maintained.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mach-omap2/omap_hwmod_reset.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

--- a/arch/arm/mach-omap2/omap_hwmod_reset.c
+++ b/arch/arm/mach-omap2/omap_hwmod_reset.c
@@ -92,11 +92,13 @@ static void omap_rtc_wait_not_busy(struc
  */
 void omap_hwmod_rtc_unlock(struct omap_hwmod *oh)
 {
-	local_irq_disable();
+	unsigned long flags;
+
+	local_irq_save(flags);
 	omap_rtc_wait_not_busy(oh);
 	omap_hwmod_write(OMAP_RTC_KICK0_VALUE, oh, OMAP_RTC_KICK0_REG);
 	omap_hwmod_write(OMAP_RTC_KICK1_VALUE, oh, OMAP_RTC_KICK1_REG);
-	local_irq_enable();
+	local_irq_restore(flags);
 }
 
 /**
@@ -110,9 +112,11 @@ void omap_hwmod_rtc_unlock(struct omap_h
  */
 void omap_hwmod_rtc_lock(struct omap_hwmod *oh)
 {
-	local_irq_disable();
+	unsigned long flags;
+
+	local_irq_save(flags);
 	omap_rtc_wait_not_busy(oh);
 	omap_hwmod_write(0x0, oh, OMAP_RTC_KICK0_REG);
 	omap_hwmod_write(0x0, oh, OMAP_RTC_KICK1_REG);
-	local_irq_enable();
+	local_irq_restore(flags);
 }

[PATCH 4.9 21/94] x86/entry/64: Add two more instruction suffixes

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jan Beulich <JBeulich@suse.com>

[ Upstream commit 6709812f094d96543b443645c68daaa32d3d3e77 ]

Sadly, other than claimed in:

  a368d7fd2a ("x86/entry/64: Add instruction suffix")

... there are two more instances which want to be adjusted.

As said there, omitting suffixes from instructions in AT&T mode is bad
practice when operand size cannot be determined by the assembler from
register operands, and is likely going to be warned about by upstream
gas in the future (mine does already).

Add the other missing suffixes here as well.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/5B3A02DD02000078001CFB78@prv1-mh.provo.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/entry/entry_64.S |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -91,7 +91,7 @@ ENDPROC(native_usergs_sysret64)
 .endm
 
 .macro TRACE_IRQS_IRETQ_DEBUG
-	bt	$9, EFLAGS(%rsp)		/* interrupts off? */
+	btl	$9, EFLAGS(%rsp)		/* interrupts off? */
 	jnc	1f
 	TRACE_IRQS_ON_DEBUG
 1:
@@ -485,7 +485,7 @@ retint_kernel:
 #ifdef CONFIG_PREEMPT
 	/* Interrupts are off */
 	/* Check if we need preemption */
-	bt	$9, EFLAGS(%rsp)		/* were interrupts off? */
+	btl	$9, EFLAGS(%rsp)		/* were interrupts off? */
 	jnc	1f
 0:	cmpl	$0, PER_CPU_VAR(__preempt_count)
 	jnz	1f

[PATCH 4.9 22/94] scsi: target/iscsi: Make iscsit_ta_authentication() respect the output buffer size

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bart Van Assche <bart.vanassche@wdc.com>

[ Upstream commit 35bea5c84fd13c643cce63f0b5cd4b148f8c901d ]

Fixes: e48354ce078c ("iscsi-target: Add iSCSI fabric support for target v4.1")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/target/iscsi/iscsi_target_tpg.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -637,8 +637,7 @@ int iscsit_ta_authentication(struct iscs
 		none = strstr(buf1, NONE);
 		if (none)
 			goto out;
-		strncat(buf1, ",", strlen(","));
-		strncat(buf1, NONE, strlen(NONE));
+		strlcat(buf1, "," NONE, sizeof(buf1));
 		if (iscsi_update_param_value(param, buf1) < 0)
 			return -EINVAL;
 	}

[PATCH 4.9 23/94] scsi: klist: Make it safe to use klists in atomic context

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bart Van Assche <bart.vanassche@wdc.com>

[ Upstream commit 624fa7790f80575a4ec28fbdb2034097dc18d051 ]

In the scsi_transport_srp implementation it cannot be avoided to
iterate over a klist from atomic context when using the legacy block
layer instead of blk-mq. Hence this patch that makes it safe to use
klists in atomic context. This patch avoids that lockdep reports the
following:

WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
 Possible interrupt unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&(&k->k_lock)->rlock);
                               local_irq_disable();
                               lock(&(&q->__queue_lock)->rlock);
                               lock(&(&k->k_lock)->rlock);
  <Interrupt>
    lock(&(&q->__queue_lock)->rlock);

stack backtrace:
Workqueue: kblockd blk_timeout_work
Call Trace:
 dump_stack+0xa4/0xf5
 check_usage+0x6e6/0x700
 __lock_acquire+0x185d/0x1b50
 lock_acquire+0xd2/0x260
 _raw_spin_lock+0x32/0x50
 klist_next+0x47/0x190
 device_for_each_child+0x8e/0x100
 srp_timed_out+0xaf/0x1d0 [scsi_transport_srp]
 scsi_times_out+0xd4/0x410 [scsi_mod]
 blk_rq_timed_out+0x36/0x70
 blk_timeout_work+0x1b5/0x220
 process_one_work+0x4fe/0xad0
 worker_thread+0x63/0x5a0
 kthread+0x1c1/0x1e0
 ret_from_fork+0x24/0x30

See also commit c9ddf73476ff ("scsi: scsi_transport_srp: Fix shost to
rport translation").

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: James Bottomley <jejb@linux.vnet.ibm.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 lib/klist.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- a/lib/klist.c
+++ b/lib/klist.c
@@ -336,8 +336,9 @@ struct klist_node *klist_prev(struct kli
 	void (*put)(struct klist_node *) = i->i_klist->put;
 	struct klist_node *last = i->i_cur;
 	struct klist_node *prev;
+	unsigned long flags;
 
-	spin_lock(&i->i_klist->k_lock);
+	spin_lock_irqsave(&i->i_klist->k_lock, flags);
 
 	if (last) {
 		prev = to_klist_node(last->n_node.prev);
@@ -356,7 +357,7 @@ struct klist_node *klist_prev(struct kli
 		prev = to_klist_node(prev->n_node.prev);
 	}
 
-	spin_unlock(&i->i_klist->k_lock);
+	spin_unlock_irqrestore(&i->i_klist->k_lock, flags);
 
 	if (put && last)
 		put(last);
@@ -377,8 +378,9 @@ struct klist_node *klist_next(struct kli
 	void (*put)(struct klist_node *) = i->i_klist->put;
 	struct klist_node *last = i->i_cur;
 	struct klist_node *next;
+	unsigned long flags;
 
-	spin_lock(&i->i_klist->k_lock);
+	spin_lock_irqsave(&i->i_klist->k_lock, flags);
 
 	if (last) {
 		next = to_klist_node(last->n_node.next);
@@ -397,7 +399,7 @@ struct klist_node *klist_next(struct kli
 		next = to_klist_node(next->n_node.next);
 	}
 
-	spin_unlock(&i->i_klist->k_lock);
+	spin_unlock_irqrestore(&i->i_klist->k_lock, flags);
 
 	if (put && last)
 		put(last);

[PATCH 4.9 24/94] scsi: ibmvscsi: Improve strings handling

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Breno Leitao <leitao@debian.org>

[ Upstream commit 1262dc09dc9ae7bf4ad00b6a2c5ed6a6936bcd10 ]

Currently an open firmware property is copied into partition_name variable
without keeping a room for \0.

Later one, this variable (partition_name), which is 97 bytes long, is
strncpyed into ibmvcsci_host_data->madapter_info->partition_name, which is
96 bytes long, possibly truncating it 'again' and removing the \0.

This patch simply decreases the partition name to 96 and just copy using
strlcpy() which guarantees that the string is \0 terminated. I think there
is no issue if this there is a truncation in this very first copy, i.e,
when the open firmware property is read and copied into the driver for the
very first time;

This issue also causes the following warning on GCC 8:

	drivers/scsi/ibmvscsi/ibmvscsi.c:281:2: warning:  strncpy  output may be truncated copying 96 bytes from a string of length 96 [-Wstringop-truncation]
	...
	inlined from  ibmvscsi_probe  at drivers/scsi/ibmvscsi/ibmvscsi.c:2221:7:
	drivers/scsi/ibmvscsi/ibmvscsi.c:265:3: warning:  strncpy  specified bound 97 equals destination size [-Wstringop-truncation]

CC: Bart Van Assche <bart.vanassche@wdc.com>
CC: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/ibmvscsi/ibmvscsi.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -93,7 +93,7 @@ static int max_requests = IBMVSCSI_MAX_R
 static int max_events = IBMVSCSI_MAX_REQUESTS_DEFAULT + 2;
 static int fast_fail = 1;
 static int client_reserve = 1;
-static char partition_name[97] = "UNKNOWN";
+static char partition_name[96] = "UNKNOWN";
 static unsigned int partition_number = -1;
 
 static struct scsi_transport_template *ibmvscsi_transport_template;
@@ -259,7 +259,7 @@ static void gather_partition_info(void)
 
 	ppartition_name = of_get_property(of_root, "ibm,partition-name", NULL);
 	if (ppartition_name)
-		strncpy(partition_name, ppartition_name,
+		strlcpy(partition_name, ppartition_name,
 				sizeof(partition_name));
 	p_number_ptr = of_get_property(of_root, "ibm,partition-no", NULL);
 	if (p_number_ptr)

[PATCH 4.9 25/94] usb: wusbcore: security: cast sizeof to int for comparison

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Julia Lawall <Julia.Lawall@lip6.fr>

[ Upstream commit d3ac5598c5010a8999978ebbcca3b1c6188ca36b ]

Comparing an int to a size, which is unsigned, causes the int to become
unsigned, giving the wrong result.  usb_get_descriptor can return a
negative error code.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
int x;
expression e,e1;
identifier f;
@@

*x = f(...);
... when != x = e1
    when != if (x < 0 || ...) { ... return ...; }
*x < sizeof(e)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/security.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/wusbcore/security.c
+++ b/drivers/usb/wusbcore/security.c
@@ -230,7 +230,7 @@ int wusb_dev_sec_add(struct wusbhc *wusb
 
 	result = usb_get_descriptor(usb_dev, USB_DT_SECURITY,
 				    0, secd, sizeof(*secd));
-	if (result < sizeof(*secd)) {
+	if (result < (int)sizeof(*secd)) {
 		dev_err(dev, "Can't read security descriptor or "
 			"not enough data: %d\n", result);
 		goto out;

[PATCH 4.9 26/94] powerpc/powernv/ioda2: Reduce upper limit for DMA window size

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexey Kardashevskiy <aik@ozlabs.ru>

[ Upstream commit d3d4ffaae439981e1e441ebb125aa3588627c5d8 ]

We use PHB in mode1 which uses bit 59 to select a correct DMA window.
However there is mode2 which uses bits 59:55 and allows up to 32 DMA
windows per a PE.

Even though documentation does not clearly specify that, it seems that
the actual hardware does not support bits 59:55 even in mode1, in other
words we can create a window as big as 1<<58 but DMA simply won't work.

This reduces the upper limit from 59 to 55 bits to let the userspace know
about the hardware limits.

Fixes: 7aafac11e3 "powerpc/powernv/ioda2: Gracefully fail if too many TCE levels requested"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/platforms/powernv/pci-ioda.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2623,7 +2623,7 @@ static long pnv_pci_ioda2_table_alloc_pa
 	level_shift = entries_shift + 3;
 	level_shift = max_t(unsigned, level_shift, PAGE_SHIFT);
 
-	if ((level_shift - 3) * levels + page_shift >= 60)
+	if ((level_shift - 3) * levels + page_shift >= 55)
 		return -EINVAL;
 
 	/* Allocate TCE table */

[PATCH 4.9 27/94] alarmtimer: Prevent overflow for relative nanosleep

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Thomas Gleixner <tglx@linutronix.de>

[ Upstream commit 5f936e19cc0ef97dbe3a56e9498922ad5ba1edef ]

Air Icy reported:

  UBSAN: Undefined behaviour in kernel/time/alarmtimer.c:811:7
  signed integer overflow:
  1529859276030040771 + 9223372036854775807 cannot be represented in type 'long long int'
  Call Trace:
   alarm_timer_nsleep+0x44c/0x510 kernel/time/alarmtimer.c:811
   __do_sys_clock_nanosleep kernel/time/posix-timers.c:1235 [inline]
   __se_sys_clock_nanosleep kernel/time/posix-timers.c:1213 [inline]
   __x64_sys_clock_nanosleep+0x326/0x4e0 kernel/time/posix-timers.c:1213
   do_syscall_64+0xb8/0x3a0 arch/x86/entry/common.c:290

alarm_timer_nsleep() uses ktime_add() to add the current time and the
relative expiry value. ktime_add() has no sanity checks so the addition
can overflow when the relative timeout is large enough.

Use ktime_add_safe() which has the necessary sanity checks in place and
limits the result to the valid range.

Fixes: 9a7adcf5c6de ("timers: Posix interface for alarm-timers")
Reported-by: Team OWL337 <icytxw@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1807020926360.1595@nanos.tec.linutronix.de
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/time/alarmtimer.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -786,7 +786,8 @@ static int alarm_timer_nsleep(const cloc
 	/* Convert (if necessary) to absolute time */
 	if (flags != TIMER_ABSTIME) {
 		ktime_t now = alarm_bases[type].gettime();
-		exp = ktime_add(now, exp);
+
+		exp = ktime_add_safe(now, exp);
 	}
 
 	if (alarmtimer_do_nsleep(&alarm, exp))

[PATCH 4.9 28/94] s390/extmem: fix gcc 8 stringop-overflow warning

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vasily Gorbik <gor@linux.ibm.com>

[ Upstream commit 6b2ddf33baec23dace85bd647e3fc4ac070963e8 ]

arch/s390/mm/extmem.c: In function '__segment_load':
arch/s390/mm/extmem.c:436:2: warning: 'strncat' specified bound 7 equals
source length [-Wstringop-overflow=]
  strncat(seg->res_name, " (DCSS)", 7);

What gcc complains about here is the misuse of strncat function, which
in this case does not limit a number of bytes taken from "src", so it is
in the end the same as strcat(seg->res_name, " (DCSS)");

Keeping in mind that a res_name is 15 bytes, strncat in this case
would overflow the buffer and write 0 into alignment byte between the
fields in the struct. To avoid that increasing res_name size to 16,
and reusing strlcat.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/s390/mm/extmem.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -79,7 +79,7 @@ struct qin64 {
 struct dcss_segment {
 	struct list_head list;
 	char dcss_name[8];
-	char res_name[15];
+	char res_name[16];
 	unsigned long start_addr;
 	unsigned long end;
 	atomic_t ref_count;
@@ -432,7 +432,7 @@ __segment_load (char *name, int do_nonsh
 	memcpy(&seg->res_name, seg->dcss_name, 8);
 	EBCASC(seg->res_name, 8);
 	seg->res_name[8] = '\0';
-	strncat(seg->res_name, " (DCSS)", 7);
+	strlcat(seg->res_name, " (DCSS)", sizeof(seg->res_name));
 	seg->res->name = seg->res_name;
 	rc = seg->vm_segtype;
 	if (rc == SEG_TYPE_SC ||

[PATCH 4.9 29/94] ALSA: snd-aoa: add of_node_put() in error path

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nicholas Mc Guire <hofrat@osadl.org>

[ Upstream commit 222bce5eb88d1af656419db04bcd84b2419fb900 ]

 Both calls to of_find_node_by_name() and of_get_next_child() return a
node pointer with refcount incremented thus it must be explicidly
decremented here after the last usage. As we are assured to have a
refcounted  np  either from the initial
of_find_node_by_name(NULL, name); or from the of_get_next_child(gpio, np)
in the while loop if we reached the error code path below, an
x of_node_put(np) is needed.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: commit f3d9478b2ce4 ("[ALSA] snd-aoa: add snd-aoa")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/aoa/core/gpio-feature.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/sound/aoa/core/gpio-feature.c
+++ b/sound/aoa/core/gpio-feature.c
@@ -88,8 +88,10 @@ static struct device_node *get_gpio(char
 	}
 
 	reg = of_get_property(np, "reg", NULL);
-	if (!reg)
+	if (!reg) {
+		of_node_put(np);
 		return NULL;
+	}
 
 	*gpioptr = *reg;
 

[PATCH 4.9 30/94] media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Akinobu Mita <akinobu.mita@gmail.com>

[ Upstream commit 30ed2b83343bd1e07884ca7355dac70d25ffc158 ]

When the subdevice doesn't provide s_power core ops callback, the
v4l2_subdev_call for s_power returns -ENOIOCTLCMD.  If the subdevice
doesn't have the special handling for its power saving mode, the s_power
isn't required.  So -ENOIOCTLCMD from the v4l2_subdev_call should be
ignored.

Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/s3c-camif/camif-capture.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/media/platform/s3c-camif/camif-capture.c
+++ b/drivers/media/platform/s3c-camif/camif-capture.c
@@ -117,6 +117,8 @@ static int sensor_set_power(struct camif
 
 	if (camif->sensor.power_count == !on)
 		err = v4l2_subdev_call(sensor->sd, core, s_power, on);
+	if (err == -ENOIOCTLCMD)
+		err = 0;
 	if (!err)
 		sensor->power_count += on ? 1 : -1;
 

[PATCH 4.9 31/94] media: soc_camera: ov772x: correct setting of banding filter

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Akinobu Mita <akinobu.mita@gmail.com>

[ Upstream commit 22216ec41e919682c15345e95928f266e8ba6f9e ]

The banding filter ON/OFF is controlled via bit 5 of COM8 register.  It
is attempted to be enabled in ov772x_set_params() by the following line.

	ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, 1);

But this unexpectedly results disabling the banding filter, because the
mask and set bits are exclusive.

On the other hand, ov772x_s_ctrl() correctly sets the bit by:

	ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, BNDF_ON_OFF);

The same fix was already applied to non-soc_camera version of ov772x
driver in the commit commit a024ee14cd36 ("media: ov772x: correct setting
of banding filter")

Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/i2c/soc_camera/ov772x.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/i2c/soc_camera/ov772x.c
+++ b/drivers/media/i2c/soc_camera/ov772x.c
@@ -834,7 +834,7 @@ static int ov772x_set_params(struct ov77
 	 * set COM8
 	 */
 	if (priv->band_filter) {
-		ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, 1);
+		ret = ov772x_mask_set(client, COM8, BNDF_ON_OFF, BNDF_ON_OFF);
 		if (!ret)
 			ret = ov772x_mask_set(client, BDBASE,
 					      0xff, 256 - priv->band_filter);

[PATCH 4.9 32/94] media: omap3isp: zero-initialize the isp cam_xclk{a,b} initial data

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Javier Martinez Canillas <javierm@redhat.com>

[ Upstream commit 2ec7debd44b49927a6e2861521994cc075a389ed ]

The struct clk_init_data init variable is declared in the isp_xclk_init()
function so is an automatic variable allocated in the stack. But it's not
explicitly zero-initialized, so some init fields are left uninitialized.

This causes the data structure to have undefined values that may confuse
the common clock framework when the clock is registered.

For example, the uninitialized .flags field could have the CLK_IS_CRITICAL
bit set, causing the framework to wrongly prepare the clk on registration.
This leads to the isp_xclk_prepare() callback being called, which in turn
calls to the omap3isp_get() function that increments the isp dev refcount.

Since this omap3isp_get() call is unexpected, this leads to an unbalanced
omap3isp_get() call that prevents the requested IRQ to be later enabled,
due the refcount not being 0 when the correct omap3isp_get() call happens.

Fixes: 9b28ee3c9122 ("[media] omap3isp: Use the common clock framework")

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/omap3isp/isp.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -304,7 +304,7 @@ static struct clk *isp_xclk_src_get(stru
 static int isp_xclk_init(struct isp_device *isp)
 {
 	struct device_node *np = isp->dev->of_node;
-	struct clk_init_data init;
+	struct clk_init_data init = { 0 };
 	unsigned int i;
 
 	for (i = 0; i < ARRAY_SIZE(isp->xclks); ++i)

[PATCH 4.9 33/94] staging: android: ashmem: Fix mmap size validation

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alistair Strachan <astrachan@google.com>

[ Upstream commit 8632c614565d0c5fdde527889601c018e97b6384 ]

The ashmem driver did not check that the size/offset of the vma passed
to its .mmap() function was not larger than the ashmem object being
mapped. This could cause mmap() to succeed, even though accessing parts
of the mapping would later fail with a segmentation fault.

Ensure an error is returned by the ashmem_mmap() function if the vma
size is larger than the ashmem object size. This enables safer handling
of the problem in userspace.

Cc: Todd Kjos <tkjos@android.com>
Cc: devel@driverdev.osuosl.org
Cc: linux-kernel@vger.kernel.org
Cc: kernel-team@android.com
Cc: Joel Fernandes <joel@joelfernandes.org>
Signed-off-by: Alistair Strachan <astrachan@google.com>
Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: Martijn Coenen <maco@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/ashmem.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -383,6 +383,12 @@ static int ashmem_mmap(struct file *file
 		goto out;
 	}
 
+	/* requested mapping size larger than object size */
+	if (vma->vm_end - vma->vm_start > PAGE_ALIGN(asma->size)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
 	/* requested protection bits must match our allowed protection mask */
 	if (unlikely((vma->vm_flags & ~calc_vm_prot_bits(asma->prot_mask, 0)) &
 		     calc_vm_prot_bits(PROT_MASK, 0))) {

[PATCH 4.9 34/94] drivers/tty: add error handling for pcmcia_loop_config

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhouyang Jia <jiazhouyang09@gmail.com>

[ Upstream commit 85c634e919bd6ef17427f26a52920aeba12e16ee ]

When pcmcia_loop_config fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling pcmcia_loop_config.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/serial_cs.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -637,8 +637,10 @@ static int serial_config(struct pcmcia_d
 	    (link->has_func_id) &&
 	    (link->socket->pcmcia_pfc == 0) &&
 	    ((link->func_id == CISTPL_FUNCID_MULTI) ||
-	     (link->func_id == CISTPL_FUNCID_SERIAL)))
-		pcmcia_loop_config(link, serial_check_for_multi, info);
+	     (link->func_id == CISTPL_FUNCID_SERIAL))) {
+		if (pcmcia_loop_config(link, serial_check_for_multi, info))
+			goto failed;
+	}
 
 	/*
 	 * Apply any multi-port quirk.

[PATCH 4.9 35/94] media: tm6000: add error handling for dvb_register_adapter

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhouyang Jia <jiazhouyang09@gmail.com>

[ Upstream commit e95d7c6eb94c634852eaa5ff4caf3db05b5d2e86 ]

When dvb_register_adapter fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling dvb_register_adapter.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
[hans.verkuil@cisco.com: use pr_err and fix typo: adater -> adapter]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/usb/tm6000/tm6000-dvb.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/media/usb/tm6000/tm6000-dvb.c
+++ b/drivers/media/usb/tm6000/tm6000-dvb.c
@@ -273,6 +273,11 @@ static int register_dvb(struct tm6000_co
 
 	ret = dvb_register_adapter(&dvb->adapter, "Trident TVMaster 6000 DVB-T",
 					THIS_MODULE, &dev->udev->dev, adapter_nr);
+	if (ret < 0) {
+		pr_err("tm6000: couldn't register the adapter!\n");
+		goto err;
+	}
+
 	dvb->adapter.priv = dev;
 
 	if (dvb->frontend) {

[PATCH 4.9 36/94] ALSA: hda: Add AZX_DCAPS_PM_RUNTIME for AMD Raven Ridge

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kai-Heng Feng <kai.heng.feng@canonical.com>

[ Upstream commit 1adca4b0cd65c14cb8b8c9c257720385869c3d5f ]

This patch can make audio controller in AMD Raven Ridge gets runtime
suspended to D3, to save ~1W power when it's not in use.

Cc: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/hda_intel.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2349,7 +2349,8 @@ static const struct pci_device_id azx_id
 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
 	/* AMD Raven */
 	{ PCI_DEVICE(0x1022, 0x15e3),
-	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
+	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
+			 AZX_DCAPS_PM_RUNTIME },
 	/* ATI HDMI */
 	{ PCI_DEVICE(0x1002, 0x0002),
 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },

[PATCH 4.9 37/94] net: phy: xgmiitorgmii: Check read_status results

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Brandon Maier <brandon.maier@rockwellcollins.com>

[ Upstream commit 8d0752d11312be830c33e84dfd1016e6a47c2938 ]

We're ignoring the result of the attached phy device's read_status().
Return it so we can detect errors.

Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/xilinx_gmii2rgmii.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -40,8 +40,11 @@ static int xgmiitorgmii_read_status(stru
 {
 	struct gmii2rgmii *priv = phydev->priv;
 	u16 val = 0;
+	int err;
 
-	priv->phy_drv->read_status(phydev);
+	err = priv->phy_drv->read_status(phydev);
+	if (err < 0)
+		return err;
 
 	val = mdiobus_read(phydev->mdio.bus, priv->addr, XILINX_GMII2RGMII_REG);
 	val &= ~XILINX_GMII2RGMII_SPEED_MASK;

[PATCH 4.9 38/94] ath10k: protect ath10k_htt_rx_ring_free with rx_ring.lock

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Greear <greearb@candelatech.com>

[ Upstream commit 168f75f11fe68455e0d058a818ebccfc329d8685 ]

While debugging driver crashes related to a buggy firmware
crashing under load, I noticed that ath10k_htt_rx_ring_free
could be called without being under lock.  I'm not sure if this
is the root cause of the crash or not, but it seems prudent to
protect it.

Originally tested on 4.16+ kernel with ath10k-ct 10.4 firmware
running on 9984 NIC.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -214,11 +214,12 @@ int ath10k_htt_rx_ring_refill(struct ath
 	spin_lock_bh(&htt->rx_ring.lock);
 	ret = ath10k_htt_rx_ring_fill_n(htt, (htt->rx_ring.fill_level -
 					      htt->rx_ring.fill_cnt));
-	spin_unlock_bh(&htt->rx_ring.lock);
 
 	if (ret)
 		ath10k_htt_rx_ring_free(htt);
 
+	spin_unlock_bh(&htt->rx_ring.lock);
+
 	return ret;
 }
 
@@ -230,7 +231,9 @@ void ath10k_htt_rx_free(struct ath10k_ht
 	skb_queue_purge(&htt->rx_in_ord_compl_q);
 	skb_queue_purge(&htt->tx_fetch_ind_q);
 
+	spin_lock_bh(&htt->rx_ring.lock);
 	ath10k_htt_rx_ring_free(htt);
+	spin_unlock_bh(&htt->rx_ring.lock);
 
 	dma_free_coherent(htt->ar->dev,
 			  (htt->rx_ring.size *

[PATCH 4.9 39/94] net: phy: xgmiitorgmii: Check phy_driver ready before accessing

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Brandon Maier <brandon.maier@rockwellcollins.com>

[ Upstream commit ab4e6ee578e88a659938db8fbf33720bc048d29c ]

Since a phy_device is added to the global mdio_bus list during
phy_device_register(), but a phy_device's phy_driver doesn't get
attached until phy_probe(). It's possible of_phy_find_device() in
xgmiitorgmii will return a valid phy with a NULL phy_driver. Leading to
a NULL pointer access during the memcpy().

Fixes this Oops:

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.40 #1
Hardware name: Xilinx Zynq Platform
task: ce4c8d00 task.stack: ce4ca000
PC is at memcpy+0x48/0x330
LR is at xgmiitorgmii_probe+0x90/0xe8
pc : [<c074bc68>]    lr : [<c0529548>]    psr: 20000013
sp : ce4cbb54  ip : 00000000  fp : ce4cbb8c
r10: 00000000  r9 : 00000000  r8 : c0c49178
r7 : 00000000  r6 : cdc14718  r5 : ce762800  r4 : cdc14710
r3 : 00000000  r2 : 00000054  r1 : 00000000  r0 : cdc14718
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 18c5387d  Table: 0000404a  DAC: 00000051
Process swapper/0 (pid: 1, stack limit = 0xce4ca210)
...
[<c074bc68>] (memcpy) from [<c0529548>] (xgmiitorgmii_probe+0x90/0xe8)
[<c0529548>] (xgmiitorgmii_probe) from [<c0526a94>] (mdio_probe+0x28/0x34)
[<c0526a94>] (mdio_probe) from [<c04db98c>] (driver_probe_device+0x254/0x414)
[<c04db98c>] (driver_probe_device) from [<c04dbd58>] (__device_attach_driver+0xac/0x10c)
[<c04dbd58>] (__device_attach_driver) from [<c04d96f4>] (bus_for_each_drv+0x84/0xc8)
[<c04d96f4>] (bus_for_each_drv) from [<c04db5bc>] (__device_attach+0xd0/0x134)
[<c04db5bc>] (__device_attach) from [<c04dbdd4>] (device_initial_probe+0x1c/0x20)
[<c04dbdd4>] (device_initial_probe) from [<c04da8fc>] (bus_probe_device+0x98/0xa0)
[<c04da8fc>] (bus_probe_device) from [<c04d8660>] (device_add+0x43c/0x5d0)
[<c04d8660>] (device_add) from [<c0526cb8>] (mdio_device_register+0x34/0x80)
[<c0526cb8>] (mdio_device_register) from [<c0580b48>] (of_mdiobus_register+0x170/0x30c)
[<c0580b48>] (of_mdiobus_register) from [<c05349c4>] (macb_probe+0x710/0xc00)
[<c05349c4>] (macb_probe) from [<c04dd700>] (platform_drv_probe+0x44/0x80)
[<c04dd700>] (platform_drv_probe) from [<c04db98c>] (driver_probe_device+0x254/0x414)
[<c04db98c>] (driver_probe_device) from [<c04dbc58>] (__driver_attach+0x10c/0x118)
[<c04dbc58>] (__driver_attach) from [<c04d9600>] (bus_for_each_dev+0x8c/0xd0)
[<c04d9600>] (bus_for_each_dev) from [<c04db1fc>] (driver_attach+0x2c/0x30)
[<c04db1fc>] (driver_attach) from [<c04daa98>] (bus_add_driver+0x50/0x260)
[<c04daa98>] (bus_add_driver) from [<c04dc440>] (driver_register+0x88/0x108)
[<c04dc440>] (driver_register) from [<c04dd6b4>] (__platform_driver_register+0x50/0x58)
[<c04dd6b4>] (__platform_driver_register) from [<c0b31248>] (macb_driver_init+0x24/0x28)
[<c0b31248>] (macb_driver_init) from [<c010203c>] (do_one_initcall+0x60/0x1a4)
[<c010203c>] (do_one_initcall) from [<c0b00f78>] (kernel_init_freeable+0x15c/0x1f8)
[<c0b00f78>] (kernel_init_freeable) from [<c0763d10>] (kernel_init+0x18/0x124)
[<c0763d10>] (kernel_init) from [<c0112d74>] (ret_from_fork+0x14/0x20)
Code: ba000002 f5d1f03c f5d1f05c f5d1f07c (e8b151f8)
---[ end trace 3e4ec21905820a1f ]---

Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>

Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/xilinx_gmii2rgmii.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -84,6 +84,11 @@ static int xgmiitorgmii_probe(struct mdi
 		return -EPROBE_DEFER;
 	}
 
+	if (!priv->phy_dev->drv) {
+		dev_info(dev, "Attached phy not ready\n");
+		return -EPROBE_DEFER;
+	}
+
 	priv->addr = mdiodev->addr;
 	priv->phy_drv = priv->phy_dev->drv;
 	memcpy(&priv->conv_phy_drv, priv->phy_dev->drv,

[PATCH 4.9 40/94] drm/sun4i: Fix releasing node when enumerating enpoints

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jernej Skrabec <jernej.skrabec@siol.net>

[ Upstream commit 367c359aa8637b15ee8df6335c5a29b7623966ec ]

sun4i_drv_add_endpoints() has a memory leak since it uses of_node_put()
when remote is equal to NULL and does nothing when remote has a valid
pointer.

Invert the logic to fix memory leak.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-7-jernej.skrabec@siol.net
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/sun4i/sun4i_drv.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/sun4i/sun4i_drv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_drv.c
@@ -283,7 +283,6 @@ static int sun4i_drv_add_endpoints(struc
 		remote = of_graph_get_remote_port_parent(ep);
 		if (!remote) {
 			DRM_DEBUG_DRIVER("Error retrieving the output node\n");
-			of_node_put(remote);
 			continue;
 		}
 
@@ -297,11 +296,13 @@ static int sun4i_drv_add_endpoints(struc
 
 			if (of_graph_parse_endpoint(ep, &endpoint)) {
 				DRM_DEBUG_DRIVER("Couldn't parse endpoint\n");
+				of_node_put(remote);
 				continue;
 			}
 
 			if (!endpoint.id) {
 				DRM_DEBUG_DRIVER("Endpoint is our panel... skipping\n");
+				of_node_put(remote);
 				continue;
 			}
 		}

[PATCH 4.9 41/94] rndis_wlan: potential buffer overflow in rndis_wlan_auth_indication()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit ae636fb1554833ee5133ca47bf4b2791b6739c52 ]

This is a static checker fix, not something I have tested.  The issue
is that on the second iteration through the loop, we jump forward by
le32_to_cpu(auth_req->length) bytes.  The problem is that if the length
is more than "buflen" then we end up with a negative "buflen".  A
negative buflen is type promoted to a high positive value and the loop
continues but it's accessing beyond the end of the buffer.

I believe the "auth_req->length" comes from the firmware and if the
firmware is malicious or buggy, you're already toasted so the impact of
this bug is probably not very severe.

Fixes: 030645aceb3d ("rndis_wlan: handle 802.11 indications from device")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/rndis_wlan.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -2921,6 +2921,8 @@ static void rndis_wlan_auth_indication(s
 
 	while (buflen >= sizeof(*auth_req)) {
 		auth_req = (void *)buf;
+		if (buflen < le32_to_cpu(auth_req->length))
+			return;
 		type = "unknown";
 		flags = le32_to_cpu(auth_req->flags);
 		pairwise_error = false;

[PATCH 4.9 42/94] wlcore: Add missing PM call for wlcore_cmd_wait_for_event_or_timeout()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tony Lindgren <tony@atomide.com>

[ Upstream commit 4ec7cece87b3ed21ffcd407c62fb2f151a366bc1 ]

Otherwise we can get:

WARNING: CPU: 0 PID: 55 at drivers/net/wireless/ti/wlcore/io.h:84

I've only seen this few times with the runtime PM patches enabled
so this one is probably not needed before that. This seems to
work currently based on the current PM implementation timer. Let's
apply this separately though in case others are hitting this issue.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/wireless/ti/wlcore/cmd.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -35,6 +35,7 @@
 #include "wl12xx_80211.h"
 #include "cmd.h"
 #include "event.h"
+#include "ps.h"
 #include "tx.h"
 #include "hw_ops.h"
 
@@ -191,6 +192,10 @@ int wlcore_cmd_wait_for_event_or_timeout
 
 	timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
 
+	ret = wl1271_ps_elp_wakeup(wl);
+	if (ret < 0)
+		return ret;
+
 	do {
 		if (time_after(jiffies, timeout_time)) {
 			wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
@@ -222,6 +227,7 @@ int wlcore_cmd_wait_for_event_or_timeout
 	} while (!event);
 
 out:
+	wl1271_ps_elp_sleep(wl);
 	kfree(events_vector);
 	return ret;
 }

[PATCH 4.9 43/94] ARM: mvebu: declare asm symbols as character arrays in pmsu.c

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ethan Tuttle <ethan@ethantuttle.com>

[ Upstream commit d0d378ff451a66e486488eec842e507d28145813 ]

With CONFIG_FORTIFY_SOURCE, memcpy uses the declared size of operands to
detect buffer overflows.  If src or dest is declared as a char, attempts to
copy more than byte will result in a fortify_panic().

Address this problem in mvebu_setup_boot_addr_wa() by declaring
mvebu_boot_wa_start and mvebu_boot_wa_end as character arrays.  Also remove
a couple addressof operators to avoid "arithmetic on pointer to an
incomplete type" compiler error.

See commit 54a7d50b9205 ("x86: mark kprobe templates as character arrays,
not single characters") for a similar fix.

Fixes "detected buffer overflow in memcpy" error during init on some mvebu
systems (armada-370-xp, armada-375):

(fortify_panic) from (mvebu_setup_boot_addr_wa+0xb0/0xb4)
(mvebu_setup_boot_addr_wa) from (mvebu_v7_cpu_pm_init+0x154/0x204)
(mvebu_v7_cpu_pm_init) from (do_one_initcall+0x7c/0x1a8)
(do_one_initcall) from (kernel_init_freeable+0x1bc/0x254)
(kernel_init_freeable) from (kernel_init+0x8/0x114)
(kernel_init) from (ret_from_fork+0x14/0x2c)

Signed-off-by: Ethan Tuttle <ethan@ethantuttle.com>
Tested-by: Ethan Tuttle <ethan@ethantuttle.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mach-mvebu/pmsu.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/arch/arm/mach-mvebu/pmsu.c
+++ b/arch/arm/mach-mvebu/pmsu.c
@@ -116,8 +116,8 @@ void mvebu_pmsu_set_cpu_boot_addr(int hw
 		PMSU_BOOT_ADDR_REDIRECT_OFFSET(hw_cpu));
 }
 
-extern unsigned char mvebu_boot_wa_start;
-extern unsigned char mvebu_boot_wa_end;
+extern unsigned char mvebu_boot_wa_start[];
+extern unsigned char mvebu_boot_wa_end[];
 
 /*
  * This function sets up the boot address workaround needed for SMP
@@ -130,7 +130,7 @@ int mvebu_setup_boot_addr_wa(unsigned in
 			     phys_addr_t resume_addr_reg)
 {
 	void __iomem *sram_virt_base;
-	u32 code_len = &mvebu_boot_wa_end - &mvebu_boot_wa_start;
+	u32 code_len = mvebu_boot_wa_end - mvebu_boot_wa_start;
 
 	mvebu_mbus_del_window(BOOTROM_BASE, BOOTROM_SIZE);
 	mvebu_mbus_add_window_by_id(crypto_eng_target, crypto_eng_attribute,

[PATCH 4.9 44/94] HID: hid-ntrig: add error handling for sysfs_create_group

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhouyang Jia <jiazhouyang09@gmail.com>

[ Upstream commit 44d4d51de9a3534a2b63d69efda02a10e66541e4 ]

When sysfs_create_group fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling sysfs_create_group.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hid/hid-ntrig.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -955,6 +955,8 @@ static int ntrig_probe(struct hid_device
 
 	ret = sysfs_create_group(&hdev->dev.kobj,
 			&ntrig_attribute_group);
+	if (ret)
+		hid_err(hdev, "cannot create sysfs group\n");
 
 	return 0;
 err_free:

[PATCH 4.9 45/94] perf/x86/intel/lbr: Fix incomplete LBR call stack

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kan Liang <kan.liang@linux.intel.com>

[ Upstream commit 0592e57b24e7e05ec1f4c50b9666c013abff7017 ]

LBR has a limited stack size. If a task has a deeper call stack than
LBR's stack size, only the overflowed part is reported. A complete call
stack may not be reconstructed by perf tool.

Current code doesn't access all LBR registers. It only read the ones
below the TOS. The LBR registers above the TOS will be discarded
unconditionally.

When a CALL is captured, the TOS is incremented by 1 , modulo max LBR
stack size. The LBR HW only records the call stack information to the
register which the TOS points to. It will not touch other LBR
registers. So the registers above the TOS probably still store the valid
call stack information for an overflowed call stack, which need to be
reported.

To retrieve complete call stack information, we need to start from TOS,
read all LBR registers until an invalid entry is detected.
0s can be used to detect the invalid entry, because:

 - When a RET is captured, the HW zeros the LBR register which TOS points
   to, then decreases the TOS.
 - The LBR registers are reset to 0 when adding a new LBR event or
   scheduling an existing LBR event.
 - A taken branch at IP 0 is not expected

The context switch code is also modified to save/restore all valid LBR
registers. Furthermore, the LBR registers, which don't have valid call
stack information, need to be reset in restore, because they may be
polluted while swapped out.

Here is a small test program, tchain_deep.
Its call stack is deeper than 32.

 noinline void f33(void)
 {
        int i;

        for (i = 0; i < 10000000;) {
                if (i%2)
                        i++;
                else
                        i++;
        }
 }

 noinline void f32(void)
 {
        f33();
 }

 noinline void f31(void)
 {
        f32();
 }

 ... ...

 noinline void f1(void)
 {
        f2();
 }

 int main()
 {
        f1();
 }

Here is the test result on SKX. The max stack size of SKX is 32.

Without the patch:

 $ perf record -e cycles --call-graph lbr -- ./tchain_deep
 $ perf report --stdio
 #
 # Children      Self  Command      Shared Object     Symbol
 # ........  ........  ...........  ................  .................
 #
   100.00%    99.99%  tchain_deep    tchain_deep       [.] f33
            |
             --99.99%--f30
                       f31
                       f32
                       f33

With the patch:

 $ perf record -e cycles --call-graph lbr -- ./tchain_deep
 $ perf report --stdio
 # Children      Self  Command      Shared Object     Symbol
 # ........  ........  ...........  ................  ..................
 #
    99.99%     0.00%  tchain_deep    tchain_deep       [.] f1
            |
            ---f1
               f2
               f3
               f4
               f5
               f6
               f7
               f8
               f9
               f10
               f11
               f12
               f13
               f14
               f15
               f16
               f17
               f18
               f19
               f20
               f21
               f22
               f23
               f24
               f25
               f26
               f27
               f28
               f29
               f30
               f31
               f32
               f33

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@kernel.org
Cc: eranian@google.com
Link: https://lore.kernel.org/lkml/1528213126-4312-1-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/events/intel/lbr.c  |   32 ++++++++++++++++++++++++++------
 arch/x86/events/perf_event.h |    1 +
 2 files changed, 27 insertions(+), 6 deletions(-)

--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -342,7 +342,7 @@ static void __intel_pmu_lbr_restore(stru
 
 	mask = x86_pmu.lbr_nr - 1;
 	tos = task_ctx->tos;
-	for (i = 0; i < tos; i++) {
+	for (i = 0; i < task_ctx->valid_lbrs; i++) {
 		lbr_idx = (tos - i) & mask;
 		wrlbr_from(lbr_idx, task_ctx->lbr_from[i]);
 		wrlbr_to  (lbr_idx, task_ctx->lbr_to[i]);
@@ -350,6 +350,15 @@ static void __intel_pmu_lbr_restore(stru
 		if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_INFO)
 			wrmsrl(MSR_LBR_INFO_0 + lbr_idx, task_ctx->lbr_info[i]);
 	}
+
+	for (; i < x86_pmu.lbr_nr; i++) {
+		lbr_idx = (tos - i) & mask;
+		wrlbr_from(lbr_idx, 0);
+		wrlbr_to(lbr_idx, 0);
+		if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_INFO)
+			wrmsrl(MSR_LBR_INFO_0 + lbr_idx, 0);
+	}
+
 	wrmsrl(x86_pmu.lbr_tos, tos);
 	task_ctx->lbr_stack_state = LBR_NONE;
 }
@@ -357,7 +366,7 @@ static void __intel_pmu_lbr_restore(stru
 static void __intel_pmu_lbr_save(struct x86_perf_task_context *task_ctx)
 {
 	unsigned lbr_idx, mask;
-	u64 tos;
+	u64 tos, from;
 	int i;
 
 	if (task_ctx->lbr_callstack_users == 0) {
@@ -367,13 +376,17 @@ static void __intel_pmu_lbr_save(struct
 
 	mask = x86_pmu.lbr_nr - 1;
 	tos = intel_pmu_lbr_tos();
-	for (i = 0; i < tos; i++) {
+	for (i = 0; i < x86_pmu.lbr_nr; i++) {
 		lbr_idx = (tos - i) & mask;
-		task_ctx->lbr_from[i] = rdlbr_from(lbr_idx);
+		from = rdlbr_from(lbr_idx);
+		if (!from)
+			break;
+		task_ctx->lbr_from[i] = from;
 		task_ctx->lbr_to[i]   = rdlbr_to(lbr_idx);
 		if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_INFO)
 			rdmsrl(MSR_LBR_INFO_0 + lbr_idx, task_ctx->lbr_info[i]);
 	}
+	task_ctx->valid_lbrs = i;
 	task_ctx->tos = tos;
 	task_ctx->lbr_stack_state = LBR_VALID;
 }
@@ -522,7 +535,7 @@ static void intel_pmu_lbr_read_32(struct
  */
 static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc)
 {
-	bool need_info = false;
+	bool need_info = false, call_stack = false;
 	unsigned long mask = x86_pmu.lbr_nr - 1;
 	int lbr_format = x86_pmu.intel_cap.lbr_format;
 	u64 tos = intel_pmu_lbr_tos();
@@ -533,7 +546,7 @@ static void intel_pmu_lbr_read_64(struct
 	if (cpuc->lbr_sel) {
 		need_info = !(cpuc->lbr_sel->config & LBR_NO_INFO);
 		if (cpuc->lbr_sel->config & LBR_CALL_STACK)
-			num = tos;
+			call_stack = true;
 	}
 
 	for (i = 0; i < num; i++) {
@@ -546,6 +559,13 @@ static void intel_pmu_lbr_read_64(struct
 		from = rdlbr_from(lbr_idx);
 		to   = rdlbr_to(lbr_idx);
 
+		/*
+		 * Read LBR call stack entries
+		 * until invalid entry (0s) is detected.
+		 */
+		if (call_stack && !from)
+			break;
+
 		if (lbr_format == LBR_FORMAT_INFO && need_info) {
 			u64 info;
 
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -633,6 +633,7 @@ struct x86_perf_task_context {
 	u64 lbr_to[MAX_LBR_ENTRIES];
 	u64 lbr_info[MAX_LBR_ENTRIES];
 	int tos;
+	int valid_lbrs;
 	int lbr_callstack_users;
 	int lbr_stack_state;
 };

[PATCH 4.9 46/94] scsi: bnx2i: add error handling for ioremap_nocache

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhouyang Jia <jiazhouyang09@gmail.com>

[ Upstream commit aa154ea885eb0c2407457ce9c1538d78c95456fa ]

When ioremap_nocache fails, the lack of error-handling code may cause
unexpected results.

This patch adds error-handling code after calling ioremap_nocache.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/bnx2i/bnx2i_hwi.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -2742,6 +2742,8 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i
 					      BNX2X_DOORBELL_PCI_BAR);
 		reg_off = (1 << BNX2X_DB_SHIFT) * (cid_num & 0x1FFFF);
 		ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, 4);
+		if (!ep->qp.ctx_base)
+			return -ENOMEM;
 		goto arm_cq;
 	}
 

[PATCH 4.9 47/94] scsi: megaraid_sas: Update controller info during resume

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>

[ Upstream commit c3b10a55abc943a526aaecd7e860b15671beb906 ]

There is a possibility that firmware on the controller was upgraded before
system was suspended. During resume, driver needs to read updated
controller properties.

Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/megaraid/megaraid_sas_base.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -6193,6 +6193,9 @@ megasas_resume(struct pci_dev *pdev)
 			goto fail_init_mfi;
 	}
 
+	if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)
+		goto fail_init_mfi;
+
 	tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
 		     (unsigned long)instance);
 

[PATCH 4.9 48/94] EDAC, i7core: Fix memleaks and use-after-free on probe and remove

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan@kernel.org>

[ Upstream commit 6c974d4dfafe5e9ee754f2a6fba0eb1864f1649e ]

Make sure to free and deregister the addrmatch and chancounts devices
allocated during probe in all error paths. Also fix use-after-free in a
probe error path and in the remove success path where the devices were
being put before before deregistration.

Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Fixes: 356f0a30860d ("i7core_edac: change the mem allocation scheme to make Documentation/kobject.txt happy")
Link: http://lkml.kernel.org/r/20180612124335.6420-2-johan@kernel.org
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/i7core_edac.c |   22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1177,15 +1177,14 @@ static int i7core_create_sysfs_devices(s
 
 	rc = device_add(pvt->addrmatch_dev);
 	if (rc < 0)
-		return rc;
+		goto err_put_addrmatch;
 
 	if (!pvt->is_registered) {
 		pvt->chancounts_dev = kzalloc(sizeof(*pvt->chancounts_dev),
 					      GFP_KERNEL);
 		if (!pvt->chancounts_dev) {
-			put_device(pvt->addrmatch_dev);
-			device_del(pvt->addrmatch_dev);
-			return -ENOMEM;
+			rc = -ENOMEM;
+			goto err_del_addrmatch;
 		}
 
 		pvt->chancounts_dev->type = &all_channel_counts_type;
@@ -1199,9 +1198,18 @@ static int i7core_create_sysfs_devices(s
 
 		rc = device_add(pvt->chancounts_dev);
 		if (rc < 0)
-			return rc;
+			goto err_put_chancounts;
 	}
 	return 0;
+
+err_put_chancounts:
+	put_device(pvt->chancounts_dev);
+err_del_addrmatch:
+	device_del(pvt->addrmatch_dev);
+err_put_addrmatch:
+	put_device(pvt->addrmatch_dev);
+
+	return rc;
 }
 
 static void i7core_delete_sysfs_devices(struct mem_ctl_info *mci)
@@ -1211,11 +1219,11 @@ static void i7core_delete_sysfs_devices(
 	edac_dbg(1, "\n");
 
 	if (!pvt->is_registered) {
-		put_device(pvt->chancounts_dev);
 		device_del(pvt->chancounts_dev);
+		put_device(pvt->chancounts_dev);
 	}
-	put_device(pvt->addrmatch_dev);
 	device_del(pvt->addrmatch_dev);
+	put_device(pvt->addrmatch_dev);
 }
 
 /****************************************************************************

[PATCH 4.9 49/94] ASoC: dapm: Fix potential DAI widget pointer deref when linking DAIs

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Liam Girdwood <liam.r.girdwood@linux.intel.com>

[ Upstream commit e01b4f624278d5efe5fb5da585ca371947b16680 ]

Sometime a component or topology may configure a DAI widget with no
private data leading to a dev_dbg() dereferencne of this data.

Fix this to check for non NULL private data and let users know if widget
is missing DAI.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/soc-dapm.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -3913,6 +3913,13 @@ int snd_soc_dapm_link_dai_widgets(struct
 			continue;
 		}
 
+		/* let users know there is no DAI to link */
+		if (!dai_w->priv) {
+			dev_dbg(card->dev, "dai widget %s has no DAI\n",
+				dai_w->name);
+			continue;
+		}
+
 		dai = dai_w->priv;
 
 		/* ...find all widgets with the same stream and link them */

[PATCH 4.9 50/94] module: exclude SHN_UNDEF symbols from kallsyms api

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jessica Yu <jeyu@kernel.org>

[ Upstream commit 9f2d1e68cf4d641def734adaccfc3823d3575e6c ]

Livepatch modules are special in that we preserve their entire symbol
tables in order to be able to apply relocations after module load. The
unwanted side effect of this is that undefined (SHN_UNDEF) symbols of
livepatch modules are accessible via the kallsyms api and this can
confuse symbol resolution in livepatch (klp_find_object_symbol()) and
cause subtle bugs in livepatch.

Have the module kallsyms api skip over SHN_UNDEF symbols. These symbols
are usually not available for normal modules anyway as we cut down their
symbol tables to just the core (non-undefined) symbols, so this should
really just affect livepatch modules. Note that this patch doesn't
affect the display of undefined symbols in /proc/kallsyms.

Reported-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: Josh Poimboeuf <jpoimboe@redhat.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/module.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/kernel/module.c
+++ b/kernel/module.c
@@ -4011,7 +4011,7 @@ static unsigned long mod_find_symname(st
 
 	for (i = 0; i < kallsyms->num_symtab; i++)
 		if (strcmp(name, symname(kallsyms, i)) == 0 &&
-		    kallsyms->symtab[i].st_info != 'U')
+		    kallsyms->symtab[i].st_shndx != SHN_UNDEF)
 			return kallsyms->symtab[i].st_value;
 	return 0;
 }
@@ -4057,6 +4057,10 @@ int module_kallsyms_on_each_symbol(int (
 		if (mod->state == MODULE_STATE_UNFORMED)
 			continue;
 		for (i = 0; i < kallsyms->num_symtab; i++) {
+
+			if (kallsyms->symtab[i].st_shndx == SHN_UNDEF)
+				continue;
+
 			ret = fn(data, symname(kallsyms, i),
 				 mod, kallsyms->symtab[i].st_value);
 			if (ret != 0)

[PATCH 4.9 51/94] gpio: Fix wrong rounding in gpio-menz127

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nadav Amit <namit@vmware.com>

[ Upstream commit 7279d9917560bbd0d82813d6bf00490a82c06783 ]

men_z127_debounce() tries to round up and down, but uses functions which
are only suitable when the divider is a power of two, which is not the
case. Use the appropriate ones.

Found by static check. Compile tested.

Fixes: f436bc2726c64 ("gpio: add driver for MEN 16Z127 GPIO controller")
Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-menz127.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpio/gpio-menz127.c
+++ b/drivers/gpio/gpio-menz127.c
@@ -56,9 +56,9 @@ static int men_z127_debounce(struct gpio
 		rnd = fls(debounce) - 1;
 
 		if (rnd && (debounce & BIT(rnd - 1)))
-			debounce = round_up(debounce, MEN_Z127_DB_MIN_US);
+			debounce = roundup(debounce, MEN_Z127_DB_MIN_US);
 		else
-			debounce = round_down(debounce, MEN_Z127_DB_MIN_US);
+			debounce = rounddown(debounce, MEN_Z127_DB_MIN_US);
 
 		if (debounce > MEN_Z127_DB_MAX_US)
 			debounce = MEN_Z127_DB_MAX_US;

[PATCH 4.9 52/94] nfsd: fix corrupted reply to badly ordered compound

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "J. Bruce Fields" <bfields@redhat.com>

[ Upstream commit 5b7b15aee641904ae269be9846610a3950cbd64c ]

We're encoding a single op in the reply but leaving the number of ops
zero, so the reply makes no sense.

Somewhat academic as this isn't a case any real client will hit, though
in theory perhaps that could change in a future protocol extension.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/nfs4proc.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1725,6 +1725,7 @@ nfsd4_proc_compound(struct svc_rqst *rqs
 	if (status) {
 		op = &args->ops[0];
 		op->status = status;
+		resp->opcnt = 1;
 		goto encode_op;
 	}
 

[PATCH 4.9 53/94] EDAC: Fix memleak in module init error path

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan@kernel.org>

[ Upstream commit 4708aa85d50cc6e962dfa8acf5ad4e0d290a21db ]

Make sure to use put_device() to free the initialised struct device so
that resources managed by driver core also gets released in the event of
a registration failure.

Signed-off-by: Johan Hovold <johan@kernel.org>
Cc: Denis Kirjanov <kirjanov@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac <linux-edac@vger.kernel.org>
Fixes: 2d56b109e3a5 ("EDAC: Handle error path in edac_mc_sysfs_init() properly")
Link: http://lkml.kernel.org/r/20180612124335.6420-1-johan@kernel.org
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/edac/edac_mc_sysfs.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -1059,14 +1059,14 @@ int __init edac_mc_sysfs_init(void)
 
 	err = device_add(mci_pdev);
 	if (err < 0)
-		goto out_dev_free;
+		goto out_put_device;
 
 	edac_dbg(0, "device %s created\n", dev_name(mci_pdev));
 
 	return 0;
 
- out_dev_free:
-	kfree(mci_pdev);
+ out_put_device:
+	put_device(mci_pdev);
  out:
 	return err;
 }

[PATCH 4.9 54/94] ARM: dts: dra7: fix DCAN node addresses

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Kevin Hilman <khilman@baylibre.com>

[ Upstream commit 949bdcc8a97c6078f21c8d4966436b117f2e4cd3 ]

Fix the DT node addresses to match the reg property addresses,
which were verified to match the TRM:
http://www.ti.com/lit/pdf/sprui30

Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/dra7.dtsi |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1770,7 +1770,7 @@
 			};
 		};
 
-		dcan1: can@481cc000 {
+		dcan1: can@4ae3c000 {
 			compatible = "ti,dra7-d_can";
 			ti,hwmods = "dcan1";
 			reg = <0x4ae3c000 0x2000>;
@@ -1780,7 +1780,7 @@
 			status = "disabled";
 		};
 
-		dcan2: can@481d0000 {
+		dcan2: can@48480000 {
 			compatible = "ti,dra7-d_can";
 			ti,hwmods = "dcan2";
 			reg = <0x48480000 0x2000>;

[PATCH 4.9 55/94] floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andy Whitcroft <apw@canonical.com>

commit 65eea8edc315589d6c993cf12dbb5d0e9ef1fe4e upstream.

The final field of a floppy_struct is the field "name", which is a pointer
to a string in kernel memory.  The kernel pointer should not be copied to
user memory.  The FDGETPRM ioctl copies a floppy_struct to user memory,
including this "name" field.  This pointer cannot be used by the user
and it will leak a kernel address to user-space, which will reveal the
location of kernel code and data and undermine KASLR protection.

Model this code after the compat ioctl which copies the returned data
to a previously cleared temporary structure on the stack (excluding the
name pointer) and copy out to userspace from there.  As we already have
an inparam union with an appropriate member and that memory is already
cleared even for read only calls make use of that as a temporary store.

Based on an initial patch by Brian Belleville.

CVE-2018-7755
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Broke up long line.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/block/floppy.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3459,6 +3459,9 @@ static int fd_locked_ioctl(struct block_
 					  (struct floppy_struct **)&outparam);
 		if (ret)
 			return ret;
+		memcpy(&inparam.g, outparam,
+				offsetof(struct floppy_struct, name));
+		outparam = &inparam.g;
 		break;
 	case FDMSGON:
 		UDP->flags |= FTD_MSG;

[PATCH 4.9 56/94] tty: serial: lpuart: avoid leaking struct tty_struct

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stefan Agner <stefan@agner.ch>

commit 3216c622a24b0ebb9c159a8d1daf7f17a106b3f5 upstream.

The function tty_port_tty_get() gets a reference to the tty. Since
the code is not using tty_port_tty_set(), the reference is kept
even after closing the tty.

Avoid using tty_port_tty_get() by directly access the tty instance.
Since lpuart_start_rx_dma() is called from the .startup() and
.set_termios() callback, it is safe to assume the tty instance is
valid.

Cc: stable@vger.kernel.org # v4.9+
Fixes: 5887ad43ee02 ("tty: serial: fsl_lpuart: Use cyclic DMA for Rx")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/serial/fsl_lpuart.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -833,7 +833,8 @@ static inline int lpuart_start_rx_dma(st
 	struct circ_buf *ring = &sport->rx_ring;
 	int ret, nent;
 	int bits, baud;
-	struct tty_struct *tty = tty_port_tty_get(&sport->port.state->port);
+	struct tty_port *port = &sport->port.state->port;
+	struct tty_struct *tty = port->tty;
 	struct ktermios *termios = &tty->termios;
 
 	baud = tty_get_baud_rate(tty);

[PATCH 4.9 57/94] serial: cpm_uart: return immediately from console poll

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christophe Leroy <christophe.leroy@c-s.fr>

commit be28c1e3ca29887e207f0cbcd294cefe5074bab6 upstream.

kgdb expects poll function to return immediately and
returning NO_POLL_CHAR when no character is available.

Fixes: f5316b4aea024 ("kgdb,8250,pl011: Return immediately from console poll")
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/serial/cpm_uart/cpm_uart_core.c |   10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -1068,8 +1068,8 @@ static int poll_wait_key(char *obuf, str
 	/* Get the address of the host memory buffer.
 	 */
 	bdp = pinfo->rx_cur;
-	while (bdp->cbd_sc & BD_SC_EMPTY)
-		;
+	if (bdp->cbd_sc & BD_SC_EMPTY)
+		return NO_POLL_CHAR;
 
 	/* If the buffer address is in the CPM DPRAM, don't
 	 * convert it.
@@ -1104,7 +1104,11 @@ static int cpm_get_poll_char(struct uart
 		poll_chars = 0;
 	}
 	if (poll_chars <= 0) {
-		poll_chars = poll_wait_key(poll_buf, pinfo);
+		int ret = poll_wait_key(poll_buf, pinfo);
+
+		if (ret == NO_POLL_CHAR)
+			return ret;
+		poll_chars = ret;
 		pollp = poll_buf;
 	}
 	poll_chars--;

[PATCH 4.9 58/94] spi: tegra20-slink: explicitly enable/disable clock

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

commit 7001cab1dabc0b72b2b672ef58a90ab64f5e2343 upstream.

Depending on the SPI instance one may get an interrupt storm upon
requesting resp. interrupt unless the clock is explicitly enabled
beforehand. This has been observed trying to bring up instance 4 on
T20.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/spi/spi-tegra20-slink.c |   31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1063,6 +1063,24 @@ static int tegra_slink_probe(struct plat
 		goto exit_free_master;
 	}
 
+	/* disabled clock may cause interrupt storm upon request */
+	tspi->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(tspi->clk)) {
+		ret = PTR_ERR(tspi->clk);
+		dev_err(&pdev->dev, "Can not get clock %d\n", ret);
+		goto exit_free_master;
+	}
+	ret = clk_prepare(tspi->clk);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Clock prepare failed %d\n", ret);
+		goto exit_free_master;
+	}
+	ret = clk_enable(tspi->clk);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Clock enable failed %d\n", ret);
+		goto exit_free_master;
+	}
+
 	spi_irq = platform_get_irq(pdev, 0);
 	tspi->irq = spi_irq;
 	ret = request_threaded_irq(tspi->irq, tegra_slink_isr,
@@ -1071,14 +1089,7 @@ static int tegra_slink_probe(struct plat
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n",
 					tspi->irq);
-		goto exit_free_master;
-	}
-
-	tspi->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(tspi->clk)) {
-		dev_err(&pdev->dev, "can not get clock\n");
-		ret = PTR_ERR(tspi->clk);
-		goto exit_free_irq;
+		goto exit_clk_disable;
 	}
 
 	tspi->rst = devm_reset_control_get(&pdev->dev, "spi");
@@ -1138,6 +1149,8 @@ exit_rx_dma_free:
 	tegra_slink_deinit_dma_param(tspi, true);
 exit_free_irq:
 	free_irq(spi_irq, tspi);
+exit_clk_disable:
+	clk_disable(tspi->clk);
 exit_free_master:
 	spi_master_put(master);
 	return ret;
@@ -1150,6 +1163,8 @@ static int tegra_slink_remove(struct pla
 
 	free_irq(tspi->irq, tspi);
 
+	clk_disable(tspi->clk);
+
 	if (tspi->tx_dma_chan)
 		tegra_slink_deinit_dma_param(tspi, false);
 

[PATCH 4.9 59/94] spi: sh-msiof: Fix invalid SPI use during system suspend

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Gaku Inami <gaku.inami.xw@bp.renesas.com>

commit ffa69d6a16f686efe45269342474e421f2aa58b2 upstream.

If the SPI queue is running during system suspend, the system may lock
up.

Fix this by stopping/restarting the queue during system suspend/resume
by calling spi_master_suspend()/spi_master_resume() from the PM
callbacks.  In-kernel users will receive an -ESHUTDOWN error while
system suspend/resume is in progress.

Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
[geert: Cleanup, reword]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/spi/spi-sh-msiof.c |   25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

--- a/drivers/spi/spi-sh-msiof.c
+++ b/drivers/spi/spi-sh-msiof.c
@@ -1275,12 +1275,37 @@ static const struct platform_device_id s
 };
 MODULE_DEVICE_TABLE(platform, spi_driver_ids);
 
+#ifdef CONFIG_PM_SLEEP
+static int sh_msiof_spi_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct sh_msiof_spi_priv *p = platform_get_drvdata(pdev);
+
+	return spi_master_suspend(p->master);
+}
+
+static int sh_msiof_spi_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct sh_msiof_spi_priv *p = platform_get_drvdata(pdev);
+
+	return spi_master_resume(p->master);
+}
+
+static SIMPLE_DEV_PM_OPS(sh_msiof_spi_pm_ops, sh_msiof_spi_suspend,
+			 sh_msiof_spi_resume);
+#define DEV_PM_OPS	&sh_msiof_spi_pm_ops
+#else
+#define DEV_PM_OPS	NULL
+#endif /* CONFIG_PM_SLEEP */
+
 static struct platform_driver sh_msiof_spi_drv = {
 	.probe		= sh_msiof_spi_probe,
 	.remove		= sh_msiof_spi_remove,
 	.id_table	= spi_driver_ids,
 	.driver		= {
 		.name		= "spi_sh_msiof",
+		.pm		= DEV_PM_OPS,
 		.of_match_table = of_match_ptr(sh_msiof_match),
 	},
 };

[PATCH 4.9 60/94] spi: sh-msiof: Fix handling of write value for SISTR register

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>

commit 31a5fae4c5a009898da6d177901d5328051641ff upstream.

This patch changes writing to the SISTR register according to the H/W
user's manual.

The TDREQ bit and RDREQ bits of SISTR are read-only, and must be written
their initial values of zero.

Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
[geert: reword]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/spi/spi-sh-msiof.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/spi/spi-sh-msiof.c
+++ b/drivers/spi/spi-sh-msiof.c
@@ -373,7 +373,8 @@ static void sh_msiof_spi_set_mode_regs(s
 
 static void sh_msiof_reset_str(struct sh_msiof_spi_priv *p)
 {
-	sh_msiof_write(p, STR, sh_msiof_read(p, STR));
+	sh_msiof_write(p, STR,
+		       sh_msiof_read(p, STR) & ~(STR_TDREQ | STR_RDREQ));
 }
 
 static void sh_msiof_spi_write_fifo_8(struct sh_msiof_spi_priv *p,

[PATCH 4.9 61/94] spi: rspi: Fix invalid SPI use during system suspend

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Geert Uytterhoeven <geert+renesas@glider.be>

commit c1ca59c22c56930b377a665fdd1b43351887830b upstream.

If the SPI queue is running during system suspend, the system may lock
up.

Fix this by stopping/restarting the queue during system suspend/resume,
by calling spi_master_suspend()/spi_master_resume() from the PM
callbacks.  In-kernel users will receive an -ESHUTDOWN error while
system suspend/resume is in progress.

Based on a patch for sh-msiof by Gaku Inami.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/spi/spi-rspi.c |   24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -1313,12 +1313,36 @@ static const struct platform_device_id s
 
 MODULE_DEVICE_TABLE(platform, spi_driver_ids);
 
+#ifdef CONFIG_PM_SLEEP
+static int rspi_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct rspi_data *rspi = platform_get_drvdata(pdev);
+
+	return spi_master_suspend(rspi->master);
+}
+
+static int rspi_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct rspi_data *rspi = platform_get_drvdata(pdev);
+
+	return spi_master_resume(rspi->master);
+}
+
+static SIMPLE_DEV_PM_OPS(rspi_pm_ops, rspi_suspend, rspi_resume);
+#define DEV_PM_OPS	&rspi_pm_ops
+#else
+#define DEV_PM_OPS	NULL
+#endif /* CONFIG_PM_SLEEP */
+
 static struct platform_driver rspi_driver = {
 	.probe =	rspi_probe,
 	.remove =	rspi_remove,
 	.id_table =	spi_driver_ids,
 	.driver		= {
 		.name = "renesas_spi",
+		.pm = DEV_PM_OPS,
 		.of_match_table = of_match_ptr(rspi_of_match),
 	},
 };

[PATCH 4.9 62/94] spi: rspi: Fix interrupted DMA transfers

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Geert Uytterhoeven <geert+renesas@glider.be>

commit 8dbbaa47b96f6ea5f09f922b4effff3c505cd8cf upstream.

When interrupted, wait_event_interruptible_timeout() returns
-ERESTARTSYS, and the SPI transfer in progress will fail, as expected:

    m25p80 spi0.0: SPI transfer failed: -512
    spi_master spi0: failed to transfer one message from queue

However, as the underlying DMA transfers may not have completed, all
subsequent SPI transfers may start to fail:

    spi_master spi0: receive timeout
    qspi_transfer_out_in() returned -110
    m25p80 spi0.0: SPI transfer failed: -110
    spi_master spi0: failed to transfer one message from queue

Fix this by calling dmaengine_terminate_all() not only for timeouts, but
also for errors.

This can be reproduced on r8a7991/koelsch, using "hd /dev/mtd0" followed
by CTRL-C.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/spi/spi-rspi.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -597,11 +597,13 @@ static int rspi_dma_transfer(struct rspi
 
 	ret = wait_event_interruptible_timeout(rspi->wait,
 					       rspi->dma_callbacked, HZ);
-	if (ret > 0 && rspi->dma_callbacked)
+	if (ret > 0 && rspi->dma_callbacked) {
 		ret = 0;
-	else if (!ret) {
-		dev_err(&rspi->master->dev, "DMA timeout\n");
-		ret = -ETIMEDOUT;
+	} else {
+		if (!ret) {
+			dev_err(&rspi->master->dev, "DMA timeout\n");
+			ret = -ETIMEDOUT;
+		}
 		if (tx)
 			dmaengine_terminate_all(rspi->master->dma_tx);
 		if (rx)

[PATCH 4.9 63/94] regulator: fix crash caused by null driver data

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Yu Zhao <yuzhao@google.com>

commit fb6de923ca3358a91525552b4907d4cb38730bdd upstream.

dev_set_drvdata() needs to be called before device_register()
exposes device to userspace. Otherwise kernel crashes after it
gets null pointer from dev_get_drvdata() when userspace tries
to access sysfs entries.

[Removed backtrace for length -- broonie]

Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/regulator/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4054,13 +4054,13 @@ regulator_register(const struct regulato
 	    !rdev->desc->fixed_uV)
 		rdev->is_switch = true;
 
+	dev_set_drvdata(&rdev->dev, rdev);
 	ret = device_register(&rdev->dev);
 	if (ret != 0) {
 		put_device(&rdev->dev);
 		goto unset_supplies;
 	}
 
-	dev_set_drvdata(&rdev->dev, rdev);
 	rdev_init_debugfs(rdev);
 
 	/* try to resolve regulators supply since a new one was registered */

[PATCH 4.9 64/94] USB: fix error handling in usb_driver_claim_interface()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alan Stern <stern@rowland.harvard.edu>

commit bd729f9d67aa9a303d8925bb8c4f06af25f407d1 upstream.

The syzbot fuzzing project found a use-after-free bug in the USB
core.  The bug was caused by usbfs not unbinding from an interface
when the USB device file was closed, which led another process to
attempt the unbind later on, after the private data structure had been
deallocated.

The reason usbfs did not unbind the interface at the appropriate time
was because it thought the interface had never been claimed in the
first place.  This was caused by the fact that
usb_driver_claim_interface() does not clean up properly when
device_bind_driver() returns an error.  Although the error code gets
passed back to the caller, the iface->dev.driver pointer remains set
and iface->condition remains equal to USB_INTERFACE_BOUND.

This patch adds proper error handling to usb_driver_claim_interface().

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: syzbot+f84aa7209ccec829536f@syzkaller.appspotmail.com
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/core/driver.c |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -562,6 +562,21 @@ int usb_driver_claim_interface(struct us
 	if (!lpm_disable_error)
 		usb_unlocked_enable_lpm(udev);
 
+	if (retval) {
+		dev->driver = NULL;
+		usb_set_intfdata(iface, NULL);
+		iface->needs_remote_wakeup = 0;
+		iface->condition = USB_INTERFACE_UNBOUND;
+
+		/*
+		 * Unbound interfaces are always runtime-PM-disabled
+		 * and runtime-PM-suspended
+		 */
+		if (driver->supports_autosuspend)
+			pm_runtime_disable(dev);
+		pm_runtime_set_suspended(dev);
+	}
+
 	return retval;
 }
 EXPORT_SYMBOL_GPL(usb_driver_claim_interface);

[PATCH 4.9 65/94] USB: handle NULL config in usb_find_alt_setting()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alan Stern <stern@rowland.harvard.edu>

commit c9a4cb204e9eb7fa7dfbe3f7d3a674fa530aa193 upstream.

usb_find_alt_setting() takes a pointer to a struct usb_host_config as
an argument; it searches for an interface with specified interface and
alternate setting numbers in that config.  However, it crashes if the
usb_host_config pointer argument is NULL.

Since this is a general-purpose routine, available for use in many
places, we want to to be more robust.  This patch makes it return NULL
whenever the config argument is NULL.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: syzbot+19c3aaef85a89d451eac@syzkaller.appspotmail.com
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/core/usb.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -91,6 +91,8 @@ struct usb_host_interface *usb_find_alt_
 	struct usb_interface_cache *intf_cache = NULL;
 	int i;
 
+	if (!config)
+		return NULL;
 	for (i = 0; i < config->desc.bNumInterfaces; i++) {
 		if (config->intf_cache[i]->altsetting[0].desc.bInterfaceNumber
 				== iface_num) {

[PATCH 4.9 66/94] slub: make ->cpu_partial unsigned int

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alexey Dobriyan <adobriyan@gmail.com>

commit e5d9998f3e09359b372a037a6ac55ba235d95d57 upstream.

	/*
	 * cpu_partial determined the maximum number of objects
	 * kept in the per cpu partial lists of a processor.
	 */

Can't be negative.

Link: http://lkml.kernel.org/r/20180305200730.15812-15-adobriyan@gmail.com
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 include/linux/slub_def.h |    3 ++-
 mm/slub.c                |    6 +++---
 2 files changed, 5 insertions(+), 4 deletions(-)

--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -67,7 +67,8 @@ struct kmem_cache {
 	int size;		/* The size of an object including meta data */
 	int object_size;	/* The size of an object without meta data */
 	int offset;		/* Free pointer offset. */
-	int cpu_partial;	/* Number of per cpu partial objects to keep around */
+	/* Number of per cpu partial objects to keep around */
+	unsigned int cpu_partial;
 	struct kmem_cache_order_objects oo;
 
 	/* Allocation and freeing of slabs */
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1793,7 +1793,7 @@ static void *get_partial_node(struct kme
 {
 	struct page *page, *page2;
 	void *object = NULL;
-	int available = 0;
+	unsigned int available = 0;
 	int objects;
 
 	/*
@@ -4870,10 +4870,10 @@ static ssize_t cpu_partial_show(struct k
 static ssize_t cpu_partial_store(struct kmem_cache *s, const char *buf,
 				 size_t length)
 {
-	unsigned long objects;
+	unsigned int objects;
 	int err;
 
-	err = kstrtoul(buf, 10, &objects);
+	err = kstrtouint(buf, 10, &objects);
 	if (err)
 		return err;
 	if (objects && !kmem_cache_has_cpu_partial(s))

[PATCH 4.9 67/94] media: uvcvideo: Support realteks UVC 1.5 device

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: ming_qian <ming_qian@realsil.com.cn>

commit f620d1d7afc7db57ab59f35000752840c91f67e7 upstream.

media: uvcvideo: Support UVC 1.5 video probe & commit controls

The length of UVC 1.5 video control is 48, and it is 34 for UVC 1.1.
Change it to 48 for UVC 1.5 device, and the UVC 1.5 device can be
recognized.

More changes to the driver are needed for full UVC 1.5 compatibility.
However, at least the UVC 1.5 Realtek RTS5847/RTS5852 cameras have been
reported to work well.

[laurent.pinchart@ideasonboard.com: Factor out code to helper function, update size checks]

Cc: stable@vger.kernel.org
Signed-off-by: ming_qian <ming_qian@realsil.com.cn>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Ana Guerrero Lopez <ana.guerrero@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/usb/uvc/uvc_video.c |   24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -163,14 +163,27 @@ static void uvc_fixup_video_ctrl(struct
 	}
 }
 
+static size_t uvc_video_ctrl_size(struct uvc_streaming *stream)
+{
+	/*
+	 * Return the size of the video probe and commit controls, which depends
+	 * on the protocol version.
+	 */
+	if (stream->dev->uvc_version < 0x0110)
+		return 26;
+	else if (stream->dev->uvc_version < 0x0150)
+		return 34;
+	else
+		return 48;
+}
+
 static int uvc_get_video_ctrl(struct uvc_streaming *stream,
 	struct uvc_streaming_control *ctrl, int probe, __u8 query)
 {
+	__u16 size = uvc_video_ctrl_size(stream);
 	__u8 *data;
-	__u16 size;
 	int ret;
 
-	size = stream->dev->uvc_version >= 0x0110 ? 34 : 26;
 	if ((stream->dev->quirks & UVC_QUIRK_PROBE_DEF) &&
 			query == UVC_GET_DEF)
 		return -EIO;
@@ -225,7 +238,7 @@ static int uvc_get_video_ctrl(struct uvc
 	ctrl->dwMaxVideoFrameSize = get_unaligned_le32(&data[18]);
 	ctrl->dwMaxPayloadTransferSize = get_unaligned_le32(&data[22]);
 
-	if (size == 34) {
+	if (size >= 34) {
 		ctrl->dwClockFrequency = get_unaligned_le32(&data[26]);
 		ctrl->bmFramingInfo = data[30];
 		ctrl->bPreferedVersion = data[31];
@@ -254,11 +267,10 @@ out:
 static int uvc_set_video_ctrl(struct uvc_streaming *stream,
 	struct uvc_streaming_control *ctrl, int probe)
 {
+	__u16 size = uvc_video_ctrl_size(stream);
 	__u8 *data;
-	__u16 size;
 	int ret;
 
-	size = stream->dev->uvc_version >= 0x0110 ? 34 : 26;
 	data = kzalloc(size, GFP_KERNEL);
 	if (data == NULL)
 		return -ENOMEM;
@@ -275,7 +287,7 @@ static int uvc_set_video_ctrl(struct uvc
 	put_unaligned_le32(ctrl->dwMaxVideoFrameSize, &data[18]);
 	put_unaligned_le32(ctrl->dwMaxPayloadTransferSize, &data[22]);
 
-	if (size == 34) {
+	if (size >= 34) {
 		put_unaligned_le32(ctrl->dwClockFrequency, &data[26]);
 		data[30] = ctrl->bmFramingInfo;
 		data[31] = ctrl->bPreferedVersion;

[PATCH 4.9 68/94] USB: usbdevfs: sanitize flags more

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Oliver Neukum <oneukum@suse.com>

commit 7a68d9fb851012829c29e770621905529bd9490b upstream.

Requesting a ZERO_PACKET or not is sensible only for output.
In the input direction the device decides.
Likewise accepting short packets makes sense only for input.

This allows operation with panic_on_warn without opening up
a local DOS.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reported-by: syzbot+843efa30c8821bd69f53@syzkaller.appspotmail.com
Fixes: 0cb54a3e47cb ("USB: debugging code shouldn't alter control flow")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/core/devio.c |   19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1450,10 +1450,13 @@ static int proc_do_submiturb(struct usb_
 	struct async *as = NULL;
 	struct usb_ctrlrequest *dr = NULL;
 	unsigned int u, totlen, isofrmlen;
-	int i, ret, is_in, num_sgs = 0, ifnum = -1;
+	int i, ret, num_sgs = 0, ifnum = -1;
 	int number_of_packets = 0;
 	unsigned int stream_id = 0;
 	void *buf;
+	bool is_in;
+	bool allow_short = false;
+	bool allow_zero = false;
 	unsigned long mask =	USBDEVFS_URB_SHORT_NOT_OK |
 				USBDEVFS_URB_BULK_CONTINUATION |
 				USBDEVFS_URB_NO_FSBR |
@@ -1487,6 +1490,8 @@ static int proc_do_submiturb(struct usb_
 	u = 0;
 	switch (uurb->type) {
 	case USBDEVFS_URB_TYPE_CONTROL:
+		if (is_in)
+			allow_short = true;
 		if (!usb_endpoint_xfer_control(&ep->desc))
 			return -EINVAL;
 		/* min 8 byte setup packet */
@@ -1527,6 +1532,10 @@ static int proc_do_submiturb(struct usb_
 		break;
 
 	case USBDEVFS_URB_TYPE_BULK:
+		if (!is_in)
+			allow_zero = true;
+		else
+			allow_short = true;
 		switch (usb_endpoint_type(&ep->desc)) {
 		case USB_ENDPOINT_XFER_CONTROL:
 		case USB_ENDPOINT_XFER_ISOC:
@@ -1547,6 +1556,10 @@ static int proc_do_submiturb(struct usb_
 		if (!usb_endpoint_xfer_int(&ep->desc))
 			return -EINVAL;
  interrupt_urb:
+		if (!is_in)
+			allow_zero = true;
+		else
+			allow_short = true;
 		break;
 
 	case USBDEVFS_URB_TYPE_ISO:
@@ -1691,11 +1704,11 @@ static int proc_do_submiturb(struct usb_
 	u = (is_in ? URB_DIR_IN : URB_DIR_OUT);
 	if (uurb->flags & USBDEVFS_URB_ISO_ASAP)
 		u |= URB_ISO_ASAP;
-	if (uurb->flags & USBDEVFS_URB_SHORT_NOT_OK && is_in)
+	if (allow_short && uurb->flags & USBDEVFS_URB_SHORT_NOT_OK)
 		u |= URB_SHORT_NOT_OK;
 	if (uurb->flags & USBDEVFS_URB_NO_FSBR)
 		u |= URB_NO_FSBR;
-	if (uurb->flags & USBDEVFS_URB_ZERO_PACKET)
+	if (allow_zero && uurb->flags & USBDEVFS_URB_ZERO_PACKET)
 		u |= URB_ZERO_PACKET;
 	if (uurb->flags & USBDEVFS_URB_NO_INTERRUPT)
 		u |= URB_NO_INTERRUPT;

[PATCH 4.9 69/94] USB: usbdevfs: restore warning for nonsensical flags

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Oliver Neukum <oneukum@suse.com>

commit 81e0403b26d94360abd1f6a57311337973bc82cd upstream.

If we filter flags before they reach the core we need to generate our
own warnings.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Fixes: 0cb54a3e47cb ("USB: debugging code shouldn't alter control flow")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/core/devio.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1714,6 +1714,11 @@ static int proc_do_submiturb(struct usb_
 		u |= URB_NO_INTERRUPT;
 	as->urb->transfer_flags = u;
 
+	if (!allow_short && uurb->flags & USBDEVFS_URB_SHORT_NOT_OK)
+		dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_SHORT_NOT_OK.\n");
+	if (!allow_zero && uurb->flags & USBDEVFS_URB_ZERO_PACKET)
+		dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_ZERO_PACKET.\n");
+
 	as->urb->transfer_buffer_length = uurb->buffer_length;
 	as->urb->setup_packet = (unsigned char *)dr;
 	dr = NULL;

[PATCH 4.9 70/94] Revert "usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()"

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

commit e871db8d78df1c411032cbb3acfdf8930509360e upstream.

This reverts commit 6e22e3af7bb3a7b9dc53cb4687659f6e63fca427.

The bug the patch describes to, has been already fixed in commit
2df6948428542 ("USB: cdc-wdm: don't enable interrupts in USB-giveback")
so need to this, revert it.

Fixes: 6e22e3af7bb3 ("usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/class/cdc-wdm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -470,7 +470,7 @@ static int service_outstanding_interrupt
 
 	set_bit(WDM_RESPONDING, &desc->flags);
 	spin_unlock_irq(&desc->iuspin);
-	rv = usb_submit_urb(desc->response, GFP_ATOMIC);
+	rv = usb_submit_urb(desc->response, GFP_KERNEL);
 	spin_lock_irq(&desc->iuspin);
 	if (rv) {
 		dev_err(&desc->intf->dev,

[PATCH 4.9 71/94] USB: remove LPM management from usb_driver_claim_interface()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alan Stern <stern@rowland.harvard.edu>

commit c183813fcee44a249339b7c46e1ad271ca1870aa upstream.

usb_driver_claim_interface() disables and re-enables Link Power
Management, but it shouldn't do either one, for the reasons listed
below.  This patch removes the two LPM-related function calls from the
routine.

The reason for disabling LPM in the analogous function
usb_probe_interface() is so that drivers won't have to deal with
unwanted LPM transitions in their probe routine.  But
usb_driver_claim_interface() doesn't call the driver's probe routine
(or any other callbacks), so that reason doesn't apply here.

Furthermore, no driver other than usbfs will ever call
usb_driver_claim_interface() unless it is already bound to another
interface in the same device, which means disabling LPM here would be
redundant.  usbfs doesn't interact with LPM at all.

Lastly, the error return from usb_unlocked_disable_lpm() isn't handled
properly; the code doesn't clean up its earlier actions before
returning.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: 8306095fd2c1 ("USB: Disable USB 3.0 LPM in critical sections.")
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/core/driver.c |   15 ---------------
 1 file changed, 15 deletions(-)

--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -509,7 +509,6 @@ int usb_driver_claim_interface(struct us
 	struct device *dev;
 	struct usb_device *udev;
 	int retval = 0;
-	int lpm_disable_error = -ENODEV;
 
 	if (!iface)
 		return -ENODEV;
@@ -530,16 +529,6 @@ int usb_driver_claim_interface(struct us
 
 	iface->condition = USB_INTERFACE_BOUND;
 
-	/* See the comment about disabling LPM in usb_probe_interface(). */
-	if (driver->disable_hub_initiated_lpm) {
-		lpm_disable_error = usb_unlocked_disable_lpm(udev);
-		if (lpm_disable_error) {
-			dev_err(&iface->dev, "%s Failed to disable LPM for driver %s\n.",
-					__func__, driver->name);
-			return -ENOMEM;
-		}
-	}
-
 	/* Claimed interfaces are initially inactive (suspended) and
 	 * runtime-PM-enabled, but only if the driver has autosuspend
 	 * support.  Otherwise they are marked active, to prevent the
@@ -558,10 +547,6 @@ int usb_driver_claim_interface(struct us
 	if (device_is_registered(dev))
 		retval = device_bind_driver(dev);
 
-	/* Attempt to re-enable USB3 LPM, if the disable was successful. */
-	if (!lpm_disable_error)
-		usb_unlocked_enable_lpm(udev);
-
 	if (retval) {
 		dev->driver = NULL;
 		usb_set_intfdata(iface, NULL);

[PATCH 4.9 72/94] Input: elantech - enable middle button of touchpad on ThinkPad P72

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Aaron Ma <aaron.ma@canonical.com>

commit 91a97507323e1ad4bfc10f4a5922e67cdaf8b3cd upstream.

Adding 2 new touchpad IDs to support middle button support.

Cc: stable@vger.kernel.org
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/input/mouse/elantech.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1176,6 +1176,8 @@ static const struct dmi_system_id elante
 static const char * const middle_button_pnp_ids[] = {
 	"LEN2131", /* ThinkPad P52 w/ NFC */
 	"LEN2132", /* ThinkPad P52 */
+	"LEN2133", /* ThinkPad P72 w/ NFC */
+	"LEN2134", /* ThinkPad P72 */
 	NULL
 };
 

[PATCH 4.9 73/94] IB/srp: Avoid that sg_reset -d ${srp_device} triggers an infinite loop

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bart Van Assche <bvanassche@acm.org>

commit ee92efe41cf358f4b99e73509f2bfd4733609f26 upstream.

Use different loop variables for the inner and outer loop. This avoids
that an infinite loop occurs if there are more RDMA channels than
target->req_ring_size.

Fixes: d92c0da71a35 ("IB/srp: Add multichannel support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/infiniband/ulp/srp/ib_srp.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2639,7 +2639,7 @@ static int srp_reset_device(struct scsi_
 {
 	struct srp_target_port *target = host_to_target(scmnd->device->host);
 	struct srp_rdma_ch *ch;
-	int i;
+	int i, j;
 	u8 status;
 
 	shost_printk(KERN_ERR, target->scsi_host, "SRP reset_device called\n");
@@ -2653,8 +2653,8 @@ static int srp_reset_device(struct scsi_
 
 	for (i = 0; i < target->ch_count; i++) {
 		ch = &target->ch[i];
-		for (i = 0; i < target->req_ring_size; ++i) {
-			struct srp_request *req = &ch->req_ring[i];
+		for (j = 0; j < target->req_ring_size; ++j) {
+			struct srp_request *req = &ch->req_ring[j];
 
 			srp_finish_req(ch, req, scmnd->device, DID_RESET << 16);
 		}

[PATCH 4.9 74/94] IB/hfi1: Invalid user input can result in crash

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Michael J. Ruhl <michael.j.ruhl@intel.com>

commit 94694d18cf27a6faad91487a38ce516c2b16e7d9 upstream.

If the number of packets in a user sdma request does not match
the actual iovectors being sent, sdma_cleanup can be called on
an uninitialized request structure, resulting in a crash similar
to this:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: [<ffffffffc0ae8bb7>] __sdma_txclean+0x57/0x1e0 [hfi1]
PGD 8000001044f61067 PUD 1052706067 PMD 0
Oops: 0000 [#1] SMP
CPU: 30 PID: 69912 Comm: upsm Kdump: loaded Tainted: G           OE
------------   3.10.0-862.el7.x86_64 #1
Hardware name: Intel Corporation S2600KPR/S2600KPR, BIOS
SE5C610.86B.01.01.0019.101220160604 10/12/2016
task: ffff8b331c890000 ti: ffff8b2ed1f98000 task.ti: ffff8b2ed1f98000
RIP: 0010:[<ffffffffc0ae8bb7>]  [<ffffffffc0ae8bb7>] __sdma_txclean+0x57/0x1e0
[hfi1]
RSP: 0018:ffff8b2ed1f9bab0  EFLAGS: 00010286
RAX: 0000000000008b2b RBX: ffff8b2adf6e0000 RCX: 0000000000000000
RDX: 00000000000000a0 RSI: ffff8b2e9eedc540 RDI: ffff8b2adf6e0000
RBP: ffff8b2ed1f9bad8 R08: 0000000000000000 R09: ffffffffc0b04a06
R10: ffff8b331c890190 R11: ffffe6ed00bf1840 R12: ffff8b3315480000
R13: ffff8b33154800f0 R14: 00000000fffffff2 R15: ffff8b2e9eedc540
FS:  00007f035ac47740(0000) GS:ffff8b331e100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 0000000c03fe6000 CR4: 00000000001607e0
Call Trace:
 [<ffffffffc0b0570d>] user_sdma_send_pkts+0xdcd/0x1990 [hfi1]
 [<ffffffff9fe75fb0>] ? gup_pud_range+0x140/0x290
 [<ffffffffc0ad3105>] ? hfi1_mmu_rb_insert+0x155/0x1b0 [hfi1]
 [<ffffffffc0b0777b>] hfi1_user_sdma_process_request+0xc5b/0x11b0 [hfi1]
 [<ffffffffc0ac193a>] hfi1_aio_write+0xba/0x110 [hfi1]
 [<ffffffffa001a2bb>] do_sync_readv_writev+0x7b/0xd0
 [<ffffffffa001bede>] do_readv_writev+0xce/0x260
 [<ffffffffa022b089>] ? tty_ldisc_deref+0x19/0x20
 [<ffffffffa02268c0>] ? n_tty_ioctl+0xe0/0xe0
 [<ffffffffa001c105>] vfs_writev+0x35/0x60
 [<ffffffffa001c2bf>] SyS_writev+0x7f/0x110
 [<ffffffffa051f7d5>] system_call_fastpath+0x1c/0x21
Code: 06 49 c7 47 18 00 00 00 00 0f 87 89 01 00 00 5b 41 5c 41 5d 41 5e 41 5f
5d c3 66 2e 0f 1f 84 00 00 00 00 00 48 8b 4e 10 48 89 fb <48> 8b 51 08 49 89 d4
83 e2 0c 41 81 e4 00 e0 00 00 48 c1 ea 02
RIP  [<ffffffffc0ae8bb7>] __sdma_txclean+0x57/0x1e0 [hfi1]
 RSP <ffff8b2ed1f9bab0>
CR2: 0000000000000008

There are two exit points from user_sdma_send_pkts().  One (free_tx)
merely frees the slab entry and one (free_txreq) cleans the sdma_txreq
prior to freeing the slab entry.   The free_txreq variation can only be
called after one of the sdma_init*() variations has been called.

In the panic case, the slab entry had been allocated but not inited.

Fix the issue by exiting through free_tx thus avoiding sdma_clean().

Cc: <stable@vger.kernel.org> # 4.9.x+
Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Lukasz Odzioba <lukasz.odzioba@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

---
 drivers/infiniband/hw/hfi1/user_sdma.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/hfi1/user_sdma.c
+++ b/drivers/infiniband/hw/hfi1/user_sdma.c
@@ -956,7 +956,7 @@ static int user_sdma_send_pkts(struct us
 			if (ACCESS_ONCE(iovec->offset) == iovec->iov.iov_len) {
 				if (++req->iov_idx == req->data_iovs) {
 					ret = -EFAULT;
-					goto free_txreq;
+					goto free_tx;
 				}
 				iovec = &req->iovs[req->iov_idx];
 				WARN_ON(iovec->offset);

[PATCH 4.9 75/94] IB/hfi1: Fix context recovery when PBC has an UnsupportedVL

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Michael J. Ruhl <michael.j.ruhl@intel.com>

commit d623500b3c4efd8d4e945ac9003c6b87b469a9ab upstream.

If a packet stream uses an UnsupportedVL (virtual lane), the send
engine will not send the packet, and it will not indicate that an
error has occurred.  This will cause the packet stream to block.

HFI has 8 virtual lanes available for packet streams.  Each lane can
be enabled or disabled using the UnsupportedVL mask.  If a lane is
disabled, adding a packet to the send context must be disallowed.

The current mask for determining unsupported VLs defaults to 0 (allow
all).  This is incorrect.  Only the VLs that are defined should be
allowed.

Determine which VLs are disabled (mtu == 0), and set the appropriate
unsupported bit in the mask.  The correct mask will allow the send
engine to error on the invalid VL, and error recovery will work
correctly.

Cc: <stable@vger.kernel.org> # 4.9.x+
Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Lukasz Odzioba <lukasz.odzioba@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/infiniband/hw/hfi1/pio.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/drivers/infiniband/hw/hfi1/pio.c
+++ b/drivers/infiniband/hw/hfi1/pio.c
@@ -88,6 +88,7 @@ void pio_send_control(struct hfi1_devdat
 	unsigned long flags;
 	int write = 1;	/* write sendctrl back */
 	int flush = 0;	/* re-read sendctrl to make sure it is flushed */
+	int i;
 
 	spin_lock_irqsave(&dd->sendctrl_lock, flags);
 
@@ -97,9 +98,13 @@ void pio_send_control(struct hfi1_devdat
 		reg |= SEND_CTRL_SEND_ENABLE_SMASK;
 	/* Fall through */
 	case PSC_DATA_VL_ENABLE:
+		mask = 0;
+		for (i = 0; i < ARRAY_SIZE(dd->vld); i++)
+			if (!dd->vld[i].mtu)
+				mask |= BIT_ULL(i);
 		/* Disallow sending on VLs not enabled */
-		mask = (((~0ull) << num_vls) & SEND_CTRL_UNSUPPORTED_VL_MASK) <<
-				SEND_CTRL_UNSUPPORTED_VL_SHIFT;
+		mask = (mask & SEND_CTRL_UNSUPPORTED_VL_MASK) <<
+			SEND_CTRL_UNSUPPORTED_VL_SHIFT;
 		reg = (reg & ~SEND_CTRL_UNSUPPORTED_VL_SMASK) | mask;
 		break;
 	case PSC_GLOBAL_DISABLE:

[PATCH 4.9 76/94] scsi: target: iscsi: Use bin2hex instead of a re-implementation

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vincent Pelletier <plr.vincent@gmail.com>

commit 8c39e2699f8acb2e29782a834e56306da24937fe upstream.

Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
[plr.vincent@gmail.com: hunk context change for 4.4 and 4.9, no code change]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/target/iscsi/iscsi_target_auth.c |   15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -26,15 +26,6 @@
 #include "iscsi_target_nego.h"
 #include "iscsi_target_auth.h"
 
-static void chap_binaryhex_to_asciihex(char *dst, char *src, int src_len)
-{
-	int i;
-
-	for (i = 0; i < src_len; i++) {
-		sprintf(&dst[i*2], "%02x", (int) src[i] & 0xff);
-	}
-}
-
 static void chap_gen_challenge(
 	struct iscsi_conn *conn,
 	int caller,
@@ -47,7 +38,7 @@ static void chap_gen_challenge(
 	memset(challenge_asciihex, 0, CHAP_CHALLENGE_LENGTH * 2 + 1);
 
 	get_random_bytes(chap->challenge, CHAP_CHALLENGE_LENGTH);
-	chap_binaryhex_to_asciihex(challenge_asciihex, chap->challenge,
+	bin2hex(challenge_asciihex, chap->challenge,
 				CHAP_CHALLENGE_LENGTH);
 	/*
 	 * Set CHAP_C, and copy the generated challenge into c_str.
@@ -281,7 +272,7 @@ static int chap_server_compute_md5(
 		goto out;
 	}
 
-	chap_binaryhex_to_asciihex(response, server_digest, MD5_SIGNATURE_SIZE);
+	bin2hex(response, server_digest, MD5_SIGNATURE_SIZE);
 	pr_debug("[server] MD5 Server Digest: %s\n", response);
 
 	if (memcmp(server_digest, client_digest, MD5_SIGNATURE_SIZE) != 0) {
@@ -403,7 +394,7 @@ static int chap_server_compute_md5(
 	/*
 	 * Convert response from binary hex to ascii hext.
 	 */
-	chap_binaryhex_to_asciihex(response, digest, MD5_SIGNATURE_SIZE);
+	bin2hex(response, digest, MD5_SIGNATURE_SIZE);
 	*nr_out_len += sprintf(nr_out_ptr + *nr_out_len, "CHAP_R=0x%s",
 			response);
 	*nr_out_len += 1;

[PATCH 4.9 77/94] serial: imx: restore handshaking irq for imx1

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

commit 7e620984b62532783912312e334f3c48cdacbd5d upstream.

Back in 2015 when irda was dropped from the driver imx1 was broken. This
change reintroduces the support for the third interrupt of the UART.

Fixes: afe9cbb1a6ad ("serial: imx: drop support for IRDA")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


---
 drivers/tty/serial/imx.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2197,6 +2197,14 @@ static int serial_imx_probe(struct platf
 				ret);
 			return ret;
 		}
+
+		ret = devm_request_irq(&pdev->dev, rtsirq, imx_rtsint, 0,
+				       dev_name(&pdev->dev), sport);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to request rts irq: %d\n",
+				ret);
+			return ret;
+		}
 	} else {
 		ret = devm_request_irq(&pdev->dev, rxirq, imx_int, 0,
 				       dev_name(&pdev->dev), sport);

[PATCH 4.9 78/94] IB/hfi1: Fix SL array bounds check

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ira Weiny <ira.weiny@intel.com>

commit 0dbfaa9f2813787679e296eb5476e40938ab48c8 upstream.

The SL specified by a user needs to be a valid SL.

Add a range check to the user specified SL value which protects from
running off the end of the SL to SC table.

CC: stable@vger.kernel.org
Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


---
 drivers/infiniband/hw/hfi1/verbs.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -1511,12 +1511,18 @@ static int hfi1_check_ah(struct ib_devic
 	struct hfi1_pportdata *ppd;
 	struct hfi1_devdata *dd;
 	u8 sc5;
+	u8 sl;
 
 	/* test the mapping for validity */
 	ibp = to_iport(ibdev, ah_attr->port_num);
 	ppd = ppd_from_ibp(ibp);
-	sc5 = ibp->sl_to_sc[ah_attr->sl];
 	dd = dd_from_ppd(ppd);
+
+	sl = ah_attr->sl;
+	if (sl >= ARRAY_SIZE(ibp->sl_to_sc))
+		return -EINVAL;
+
+	sc5 = ibp->sl_to_sc[sl];
 	if (sc_to_vlt(dd, sc5) > num_vls && sc_to_vlt(dd, sc5) != 0xf)
 		return -EINVAL;
 	return 0;

[PATCH 4.9 79/94] arm64: KVM: Tighten guest core register access from userspace

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dave Martin <Dave.Martin@arm.com>

commit d26c25a9d19b5976b319af528886f89cf455692d upstream.

We currently allow userspace to access the core register file
in about any possible way, including straddling multiple
registers and doing unaligned accesses.

This is not the expected use of the ABI, and nobody is actually
using it that way. Let's tighten it by explicitly checking
the size and alignment for each field of the register file.

Cc: <stable@vger.kernel.org>
Fixes: 2f4a07c5f9fe ("arm64: KVM: guest one-reg interface")
Reviewed-by: Christoffer Dall <christoffer.dall@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
[maz: rewrote Dave's initial patch to be more easily backported]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm64/kvm/guest.c |   45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -57,6 +57,45 @@ static u64 core_reg_offset_from_id(u64 i
 	return id & ~(KVM_REG_ARCH_MASK | KVM_REG_SIZE_MASK | KVM_REG_ARM_CORE);
 }
 
+static int validate_core_offset(const struct kvm_one_reg *reg)
+{
+	u64 off = core_reg_offset_from_id(reg->id);
+	int size;
+
+	switch (off) {
+	case KVM_REG_ARM_CORE_REG(regs.regs[0]) ...
+	     KVM_REG_ARM_CORE_REG(regs.regs[30]):
+	case KVM_REG_ARM_CORE_REG(regs.sp):
+	case KVM_REG_ARM_CORE_REG(regs.pc):
+	case KVM_REG_ARM_CORE_REG(regs.pstate):
+	case KVM_REG_ARM_CORE_REG(sp_el1):
+	case KVM_REG_ARM_CORE_REG(elr_el1):
+	case KVM_REG_ARM_CORE_REG(spsr[0]) ...
+	     KVM_REG_ARM_CORE_REG(spsr[KVM_NR_SPSR - 1]):
+		size = sizeof(__u64);
+		break;
+
+	case KVM_REG_ARM_CORE_REG(fp_regs.vregs[0]) ...
+	     KVM_REG_ARM_CORE_REG(fp_regs.vregs[31]):
+		size = sizeof(__uint128_t);
+		break;
+
+	case KVM_REG_ARM_CORE_REG(fp_regs.fpsr):
+	case KVM_REG_ARM_CORE_REG(fp_regs.fpcr):
+		size = sizeof(__u32);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	if (KVM_REG_SIZE(reg->id) == size &&
+	    IS_ALIGNED(off, size / sizeof(__u32)))
+		return 0;
+
+	return -EINVAL;
+}
+
 static int get_core_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
 {
 	/*
@@ -76,6 +115,9 @@ static int get_core_reg(struct kvm_vcpu
 	    (off + (KVM_REG_SIZE(reg->id) / sizeof(__u32))) >= nr_regs)
 		return -ENOENT;
 
+	if (validate_core_offset(reg))
+		return -EINVAL;
+
 	if (copy_to_user(uaddr, ((u32 *)regs) + off, KVM_REG_SIZE(reg->id)))
 		return -EFAULT;
 
@@ -98,6 +140,9 @@ static int set_core_reg(struct kvm_vcpu
 	    (off + (KVM_REG_SIZE(reg->id) / sizeof(__u32))) >= nr_regs)
 		return -ENOENT;
 
+	if (validate_core_offset(reg))
+		return -EINVAL;
+
 	if (KVM_REG_SIZE(reg->id) > sizeof(tmp))
 		return -EINVAL;
 

[PATCH 4.9 80/94] ext4: never move the system.data xattr out of the inode body

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Theodore Ts'o <tytso@mit.edu>

commit 8cdb5240ec5928b20490a2bb34cb87e9a5f40226 upstream.

When expanding the extra isize space, we must never move the
system.data xattr out of the inode body.  For performance reasons, it
doesn't make any sense, and the inline data implementation assumes
that system.data xattr is never in the external xattr block.

This addresses CVE-2018-10880

https://bugzilla.kernel.org/show_bug.cgi?id=200005

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
[groeck: Context changes]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/ext4/xattr.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1426,6 +1426,11 @@ static int ext4_xattr_make_inode_space(h
 		last = IFIRST(header);
 		/* Find the entry best suited to be pushed into EA block */
 		for (; !IS_LAST_ENTRY(last); last = EXT4_XATTR_NEXT(last)) {
+			/* never move system.data out of the inode */
+			if ((last->e_name_len == 4) &&
+			    (last->e_name_index == EXT4_XATTR_INDEX_SYSTEM) &&
+			    !memcmp(last->e_name, "data", 4))
+				continue;
 			total_size =
 			EXT4_XATTR_SIZE(le32_to_cpu(last->e_value_size)) +
 					EXT4_XATTR_LEN(last->e_name_len);

[PATCH 4.9 81/94] qed: Wait for ready indication before rereading the shmem

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tomer Tayar <Tomer.Tayar@cavium.com>

[ Upstream commit f00d25f3154b676fcea4502a25b94bd7f142ca74 ]

The MFW might be reset and re-update its shared memory.
Upon the detection of such a reset the driver rereads this memory, but it
has to wait till the data is valid.
This patch adds the missing wait for a data ready indication.

Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |   50 ++++++++++++++++++++++++------
 1 file changed, 41 insertions(+), 9 deletions(-)

--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -97,18 +97,57 @@ int qed_mcp_free(struct qed_hwfn *p_hwfn
 	return 0;
 }
 
+/* Maximum of 1 sec to wait for the SHMEM ready indication */
+#define QED_MCP_SHMEM_RDY_MAX_RETRIES	20
+#define QED_MCP_SHMEM_RDY_ITER_MS	50
+
 static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
 	struct qed_mcp_info *p_info = p_hwfn->mcp_info;
+	u8 cnt = QED_MCP_SHMEM_RDY_MAX_RETRIES;
+	u8 msec = QED_MCP_SHMEM_RDY_ITER_MS;
 	u32 drv_mb_offsize, mfw_mb_offsize;
 	u32 mcp_pf_id = MCP_PF_ID(p_hwfn);
 
 	p_info->public_base = qed_rd(p_hwfn, p_ptt, MISC_REG_SHARED_MEM_ADDR);
-	if (!p_info->public_base)
-		return 0;
+	if (!p_info->public_base) {
+		DP_NOTICE(p_hwfn,
+			  "The address of the MCP scratch-pad is not configured\n");
+		return -EINVAL;
+	}
 
 	p_info->public_base |= GRCBASE_MCP;
 
+	/* Get the MFW MB address and number of supported messages */
+	mfw_mb_offsize = qed_rd(p_hwfn, p_ptt,
+				SECTION_OFFSIZE_ADDR(p_info->public_base,
+						     PUBLIC_MFW_MB));
+	p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id);
+	p_info->mfw_mb_length = (u16)qed_rd(p_hwfn, p_ptt,
+					    p_info->mfw_mb_addr +
+					    offsetof(struct public_mfw_mb,
+						     sup_msgs));
+
+	/* The driver can notify that there was an MCP reset, and might read the
+	 * SHMEM values before the MFW has completed initializing them.
+	 * To avoid this, the "sup_msgs" field in the MFW mailbox is used as a
+	 * data ready indication.
+	 */
+	while (!p_info->mfw_mb_length && --cnt) {
+		msleep(msec);
+		p_info->mfw_mb_length =
+			(u16)qed_rd(p_hwfn, p_ptt,
+				    p_info->mfw_mb_addr +
+				    offsetof(struct public_mfw_mb, sup_msgs));
+	}
+
+	if (!cnt) {
+		DP_NOTICE(p_hwfn,
+			  "Failed to get the SHMEM ready notification after %d msec\n",
+			  QED_MCP_SHMEM_RDY_MAX_RETRIES * msec);
+		return -EBUSY;
+	}
+
 	/* Calculate the driver and MFW mailbox address */
 	drv_mb_offsize = qed_rd(p_hwfn, p_ptt,
 				SECTION_OFFSIZE_ADDR(p_info->public_base,
@@ -118,13 +157,6 @@ static int qed_load_mcp_offsets(struct q
 		   "drv_mb_offsiz = 0x%x, drv_mb_addr = 0x%x mcp_pf_id = 0x%x\n",
 		   drv_mb_offsize, p_info->drv_mb_addr, mcp_pf_id);
 
-	/* Set the MFW MB address */
-	mfw_mb_offsize = qed_rd(p_hwfn, p_ptt,
-				SECTION_OFFSIZE_ADDR(p_info->public_base,
-						     PUBLIC_MFW_MB));
-	p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id);
-	p_info->mfw_mb_length =	(u16)qed_rd(p_hwfn, p_ptt, p_info->mfw_mb_addr);
-
 	/* Get the current driver mailbox sequence before sending
 	 * the first command
 	 */

[PATCH 4.9 82/94] qed: Wait for MCP halt and resume commands to take place

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tomer Tayar <Tomer.Tayar@cavium.com>

[ Upstream commit 76271809f49056f079e202bf6513d17b0d6dd34d ]

Successive iterations of halting and resuming the management chip (MCP)
might fail, since currently the driver doesn't wait for these operations to
actually take place.
This patch prevents the driver from moving forward before the operations
are reflected in the state register.

Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/qlogic/qed/qed_mcp.c      |   46 ++++++++++++++++++++-----
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h |    1 
 2 files changed, 39 insertions(+), 8 deletions(-)

--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -1230,31 +1230,61 @@ qed_mcp_send_drv_version(struct qed_hwfn
 	return rc;
 }
 
+/* A maximal 100 msec waiting time for the MCP to halt */
+#define QED_MCP_HALT_SLEEP_MS		10
+#define QED_MCP_HALT_MAX_RETRIES	10
+
 int qed_mcp_halt(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
-	u32 resp = 0, param = 0;
+	u32 resp = 0, param = 0, cpu_state, cnt = 0;
 	int rc;
 
 	rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_MCP_HALT, 0, &resp,
 			 &param);
-	if (rc)
+	if (rc) {
 		DP_ERR(p_hwfn, "MCP response failure, aborting\n");
+		return rc;
+	}
 
-	return rc;
+	do {
+		msleep(QED_MCP_HALT_SLEEP_MS);
+		cpu_state = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_STATE);
+		if (cpu_state & MCP_REG_CPU_STATE_SOFT_HALTED)
+			break;
+	} while (++cnt < QED_MCP_HALT_MAX_RETRIES);
+
+	if (cnt == QED_MCP_HALT_MAX_RETRIES) {
+		DP_NOTICE(p_hwfn,
+			  "Failed to halt the MCP [CPU_MODE = 0x%08x, CPU_STATE = 0x%08x]\n",
+			  qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE), cpu_state);
+		return -EBUSY;
+	}
+
+	return 0;
 }
 
+#define QED_MCP_RESUME_SLEEP_MS	10
+
 int qed_mcp_resume(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
 {
-	u32 value, cpu_mode;
+	u32 cpu_mode, cpu_state;
 
 	qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_STATE, 0xffffffff);
 
-	value = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
-	value &= ~MCP_REG_CPU_MODE_SOFT_HALT;
-	qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_MODE, value);
 	cpu_mode = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_MODE);
+	cpu_mode &= ~MCP_REG_CPU_MODE_SOFT_HALT;
+	qed_wr(p_hwfn, p_ptt, MCP_REG_CPU_MODE, cpu_mode);
+	msleep(QED_MCP_RESUME_SLEEP_MS);
+	cpu_state = qed_rd(p_hwfn, p_ptt, MCP_REG_CPU_STATE);
+
+	if (cpu_state & MCP_REG_CPU_STATE_SOFT_HALTED) {
+		DP_NOTICE(p_hwfn,
+			  "Failed to resume the MCP [CPU_MODE = 0x%08x, CPU_STATE = 0x%08x]\n",
+			  cpu_mode, cpu_state);
+		return -EBUSY;
+	}
 
-	return (cpu_mode & MCP_REG_CPU_MODE_SOFT_HALT) ? -EAGAIN : 0;
+	return 0;
 }
 
 int qed_mcp_set_led(struct qed_hwfn *p_hwfn,
--- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
@@ -510,6 +510,7 @@
 	0
 #define MCP_REG_CPU_STATE \
 	0xe05004UL
+#define MCP_REG_CPU_STATE_SOFT_HALTED	(0x1UL << 10)
 #define MCP_REG_CPU_EVENT_MASK \
 	0xe05008UL
 #define PGLUE_B_REG_PF_BAR0_SIZE \

[PATCH 4.9 83/94] thermal: of-thermal: disable passive polling when thermal zone is disabled

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anson Huang <Anson.Huang@nxp.com>

[ Upstream commit 152395fd03d4ce1e535a75cdbf58105e50587611 ]

When thermal zone is in passive mode, disabling its mode from
sysfs is NOT taking effect at all, it is still polling the
temperature of the disabled thermal zone and handling all thermal
trips, it makes user confused. The disabling operation should
disable the thermal zone behavior completely, for both active and
passive mode, this patch clears the passive_delay when thermal
zone is disabled and restores it when it is enabled.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/thermal/of-thermal.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/drivers/thermal/of-thermal.c
+++ b/drivers/thermal/of-thermal.c
@@ -278,10 +278,13 @@ static int of_thermal_set_mode(struct th
 
 	mutex_lock(&tz->lock);
 
-	if (mode == THERMAL_DEVICE_ENABLED)
+	if (mode == THERMAL_DEVICE_ENABLED) {
 		tz->polling_delay = data->polling_delay;
-	else
+		tz->passive_delay = data->passive_delay;
+	} else {
 		tz->polling_delay = 0;
+		tz->passive_delay = 0;
+	}
 
 	mutex_unlock(&tz->lock);
 

[PATCH 4.9 84/94] net: hns: fix length and page_offset overflow when CONFIG_ARM64_64K_PAGES

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Huazhong Tan <tanhuazhong@huawei.com>

[ Upstream commit 3ed614dce3ca9912d22be215ff0f11104b69fe62 ]

When enable the config item "CONFIG_ARM64_64K_PAGES", the size of PAGE_SIZE
is 65536(64K). But the  type of length and page_offset are u16, they will
overflow. So change them to u32.

Fixes: 6fe6611ff275 ("net: add Hisilicon Network Subsystem hnae framework support")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/hisilicon/hns/hnae.h |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/hisilicon/hns/hnae.h
+++ b/drivers/net/ethernet/hisilicon/hns/hnae.h
@@ -213,10 +213,10 @@ struct hnae_desc_cb {
 
 	/* priv data for the desc, e.g. skb when use with ip stack*/
 	void *priv;
-	u16 page_offset;
-	u16 reuse_flag;
+	u32 page_offset;
+	u32 length;     /* length of the buffer */
 
-	u16 length;     /* length of the buffer */
+	u16 reuse_flag;
 
        /* desc type, used by the ring user to mark the type of the priv data */
 	u16 type;

[PATCH 4.9 85/94] net: hns: fix skb->truesize underestimation

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Huazhong Tan <tanhuazhong@huawei.com>

[ Upstream commit b1ccd4c0ab6ef499f47dd84ed4920502a7147bba ]

skb->truesize is not meant to be tracking amount of used bytes in a skb,
but amount of reserved/consumed bytes in memory.

For instance, if we use a single byte in last page fragment, we have to
account the full size of the fragment.

So skb_add_rx_frag needs to calculate the length of the entire buffer into
turesize.

Fixes: 9cbe9fd5214e ("net: hns: optimize XGE capability by reducing cpu usage")
Signed-off-by: Huazhong tan <tanhuazhong@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/hisilicon/hns/hns_enet.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -529,7 +529,7 @@ static void hns_nic_reuse_page(struct sk
 	}
 
 	skb_add_rx_frag(skb, i, desc_cb->priv, desc_cb->page_offset + pull_len,
-			size - pull_len, truesize - pull_len);
+			size - pull_len, truesize);
 
 	 /* avoid re-using remote pages,flag default unreuse */
 	if (unlikely(page_to_nid(desc_cb->priv) != numa_node_id()))

[PATCH 4.9 86/94] e1000: check on netif_running() before calling e1000_up()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bo Chen <chenbo@pdx.edu>

[ Upstream commit cf1acec008f8d7761aa3fd7c4bca7e17b2d2512d ]

When the device is not up, the call to 'e1000_up()' from the error handling path
of 'e1000_set_ringparam()' causes a kernel oops with a null-pointer
dereference. The null-pointer dereference is triggered in function
'e1000_alloc_rx_buffers()' at line 'buffer_info = &rx_ring->buffer_info[i]'.

This bug was reported by COD, a tool for testing kernel module binaries I am
building. This bug was also detected by KFI from Dr. Kai Cong.

This patch fixes the bug by checking on 'netif_running()' before calling
'e1000_up()' in 'e1000_set_ringparam()'.

Signed-off-by: Bo Chen <chenbo@pdx.edu>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/e1000/e1000_ethtool.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
@@ -665,7 +665,8 @@ err_setup_rx:
 err_alloc_rx:
 	kfree(txdr);
 err_alloc_tx:
-	e1000_up(adapter);
+	if (netif_running(adapter->netdev))
+		e1000_up(adapter);
 err_setup:
 	clear_bit(__E1000_RESETTING, &adapter->flags);
 	return err;

[PATCH 4.9 87/94] e1000: ensure to free old tx/rx rings in set_ringparam()

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bo Chen <chenbo@pdx.edu>

[ Upstream commit ee400a3f1bfe7004a3e14b81c38ccc5583c26295 ]

In 'e1000_set_ringparam()', the tx_ring and rx_ring are updated with new value
and the old tx/rx rings are freed only when the device is up. There are resource
leaks on old tx/rx rings when the device is not up. This bug is reported by COD,
a tool for testing kernel module binaries I am building.

This patch fixes the bug by always calling 'kfree()' on old tx/rx rings in
'e1000_set_ringparam()'.

Signed-off-by: Bo Chen <chenbo@pdx.edu>
Reviewed-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/intel/e1000/e1000_ethtool.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
@@ -645,14 +645,14 @@ static int e1000_set_ringparam(struct ne
 		adapter->tx_ring = tx_old;
 		e1000_free_all_rx_resources(adapter);
 		e1000_free_all_tx_resources(adapter);
-		kfree(tx_old);
-		kfree(rx_old);
 		adapter->rx_ring = rxdr;
 		adapter->tx_ring = txdr;
 		err = e1000_up(adapter);
 		if (err)
 			goto err_setup;
 	}
+	kfree(tx_old);
+	kfree(rx_old);
 
 	clear_bit(__E1000_RESETTING, &adapter->flags);
 	return 0;

[PATCH 4.9 88/94] hwmon: (ina2xx) fix sysfs shunt resistor read access

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Lothar Felten <lothar.felten@gmail.com>

[ Upstream commit 3ad867001c91657c46dcf6656d52eb6080286fd5 ]

fix the sysfs shunt resistor read access: return the shunt resistor
value, not the calibration register contents.

update email address

Signed-off-by: Lothar Felten <lothar.felten@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/hwmon/ina2xx           |    2 +-
 drivers/hwmon/ina2xx.c               |   13 +++++++++++--
 include/linux/platform_data/ina2xx.h |    2 +-
 3 files changed, 13 insertions(+), 4 deletions(-)

--- a/Documentation/hwmon/ina2xx
+++ b/Documentation/hwmon/ina2xx
@@ -32,7 +32,7 @@ Supported chips:
     Datasheet: Publicly available at the Texas Instruments website
                http://www.ti.com/
 
-Author: Lothar Felten <l-felten@ti.com>
+Author: Lothar Felten <lothar.felten@gmail.com>
 
 Description
 -----------
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -17,7 +17,7 @@
  * Bi-directional Current/Power Monitor with I2C Interface
  * Datasheet: http://www.ti.com/product/ina230
  *
- * Copyright (C) 2012 Lothar Felten <l-felten@ti.com>
+ * Copyright (C) 2012 Lothar Felten <lothar.felten@gmail.com>
  * Thanks to Jan Volkering
  *
  * This program is free software; you can redistribute it and/or modify
@@ -328,6 +328,15 @@ static int ina2xx_set_shunt(struct ina2x
 	return 0;
 }
 
+static ssize_t ina2xx_show_shunt(struct device *dev,
+			      struct device_attribute *da,
+			      char *buf)
+{
+	struct ina2xx_data *data = dev_get_drvdata(dev);
+
+	return snprintf(buf, PAGE_SIZE, "%li\n", data->rshunt);
+}
+
 static ssize_t ina2xx_store_shunt(struct device *dev,
 				  struct device_attribute *da,
 				  const char *buf, size_t count)
@@ -402,7 +411,7 @@ static SENSOR_DEVICE_ATTR(power1_input,
 
 /* shunt resistance */
 static SENSOR_DEVICE_ATTR(shunt_resistor, S_IRUGO | S_IWUSR,
-			  ina2xx_show_value, ina2xx_store_shunt,
+			  ina2xx_show_shunt, ina2xx_store_shunt,
 			  INA2XX_CALIBRATION);
 
 /* update interval (ina226 only) */
--- a/include/linux/platform_data/ina2xx.h
+++ b/include/linux/platform_data/ina2xx.h
@@ -1,7 +1,7 @@
 /*
  * Driver for Texas Instruments INA219, INA226 power monitor chips
  *
- * Copyright (C) 2012 Lothar Felten <l-felten@ti.com>
+ * Copyright (C) 2012 Lothar Felten <lothar.felten@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as

[PATCH 4.9 89/94] hwmon: (adt7475) Make adt7475_read_word() return errors

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit f196dec6d50abb2e65fb54a0621b2f1b4d922995 ]

The adt7475_read_word() function was meant to return negative error
codes on failure.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Tokunori Ikegami <ikegami@allied-telesis.co.jp>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/adt7475.c |   14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

--- a/drivers/hwmon/adt7475.c
+++ b/drivers/hwmon/adt7475.c
@@ -274,14 +274,18 @@ static inline u16 volt2reg(int channel,
 	return clamp_val(reg, 0, 1023) & (0xff << 2);
 }
 
-static u16 adt7475_read_word(struct i2c_client *client, int reg)
+static int adt7475_read_word(struct i2c_client *client, int reg)
 {
-	u16 val;
+	int val1, val2;
 
-	val = i2c_smbus_read_byte_data(client, reg);
-	val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8);
+	val1 = i2c_smbus_read_byte_data(client, reg);
+	if (val1 < 0)
+		return val1;
+	val2 = i2c_smbus_read_byte_data(client, reg + 1);
+	if (val2 < 0)
+		return val2;
 
-	return val;
+	return val1 | (val2 << 8);
 }
 
 static void adt7475_write_word(struct i2c_client *client, int reg, u16 val)

[PATCH 4.9 90/94] drm/amdgpu: Enable/disable gfx PG feature in rlc safe mode

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Rex Zhu <Rex.Zhu@amd.com>

[ Upstream commit 8ef23364b654d44244400d79988e677e504b21ba ]

This is required by gfx hw and can fix the rlc hang when
do s3 stree test on Cz/St.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Hang Zhou <hang.zhou@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -5551,6 +5551,11 @@ static int gfx_v8_0_set_powergating_stat
 	if (!(adev->pg_flags & AMD_PG_SUPPORT_GFX_PG))
 		return 0;
 
+	if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG |
+				AMD_PG_SUPPORT_RLC_SMU_HS |
+				AMD_PG_SUPPORT_CP |
+				AMD_PG_SUPPORT_GFX_DMG))
+		adev->gfx.rlc.funcs->enter_safe_mode(adev);
 	switch (adev->asic_type) {
 	case CHIP_CARRIZO:
 	case CHIP_STONEY:
@@ -5586,7 +5591,11 @@ static int gfx_v8_0_set_powergating_stat
 	default:
 		break;
 	}
-
+	if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_SMG |
+				AMD_PG_SUPPORT_RLC_SMU_HS |
+				AMD_PG_SUPPORT_CP |
+				AMD_PG_SUPPORT_GFX_DMG))
+		adev->gfx.rlc.funcs->exit_safe_mode(adev);
 	return 0;
 }
 

[PATCH 4.9 91/94] drm/amdgpu: Update power state at the end of smu hw_init.

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Rex Zhu <Rex.Zhu@amd.com>

[ Upstream commit 2ab4d0e74256fc49b7b270f63c1d1e47c2455abc ]

For SI/Kv, the power state is managed by function
amdgpu_pm_compute_clocks.

when dpm enabled, we should call amdgpu_pm_compute_clocks
to update current power state instand of set boot state.

this change can fix the oops when kfd driver was enabled on Kv.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/kv_dpm.c |    4 +---
 drivers/gpu/drm/amd/amdgpu/si_dpm.c |    3 +--
 2 files changed, 2 insertions(+), 5 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
@@ -1350,8 +1350,6 @@ static int kv_dpm_enable(struct amdgpu_d
 		return ret;
 	}
 
-	kv_update_current_ps(adev, adev->pm.dpm.boot_ps);
-
 	if (adev->irq.installed &&
 	    amdgpu_is_internal_thermal_sensor(adev->pm.int_thermal_type)) {
 		ret = kv_set_thermal_temperature_range(adev, KV_TEMP_RANGE_MIN, KV_TEMP_RANGE_MAX);
@@ -3086,7 +3084,7 @@ static int kv_dpm_hw_init(void *handle)
 	else
 		adev->pm.dpm_enabled = true;
 	mutex_unlock(&adev->pm.mutex);
-
+	amdgpu_pm_compute_clocks(adev);
 	return ret;
 }
 
--- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
@@ -6959,7 +6959,6 @@ static int si_dpm_enable(struct amdgpu_d
 
 	si_enable_auto_throttle_source(adev, AMDGPU_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
 	si_thermal_start_thermal_controller(adev);
-	ni_update_current_ps(adev, boot_ps);
 
 	return 0;
 }
@@ -7836,7 +7835,7 @@ static int si_dpm_hw_init(void *handle)
 	else
 		adev->pm.dpm_enabled = true;
 	mutex_unlock(&adev->pm.mutex);
-
+	amdgpu_pm_compute_clocks(adev);
 	return ret;
 }
 

[PATCH 4.9 92/94] arm/arm64: smccc-1.1: Make return values unsigned long

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marc Zyngier <marc.zyngier@arm.com>

[ Upstream commit 1d8f574708a3fb6f18c85486d0c5217df893c0cf ]

An unfortunate consequence of having a strong typing for the input
values to the SMC call is that it also affects the type of the
return values, limiting r0 to 32 bits and r{1,2,3} to whatever
was passed as an input.

Let's turn everything into "unsigned long", which satisfies the
requirements of both architectures, and allows for the full
range of return values.

Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/arm-smccc.h |   20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -199,31 +199,31 @@ asmlinkage void __arm_smccc_hvc(unsigned
 
 #define __declare_arg_0(a0, res)					\
 	struct arm_smccc_res   *___res = res;				\
-	register u32           r0 asm("r0") = a0;			\
+	register unsigned long r0 asm("r0") = (u32)a0;			\
 	register unsigned long r1 asm("r1");				\
 	register unsigned long r2 asm("r2");				\
 	register unsigned long r3 asm("r3")
 
 #define __declare_arg_1(a0, a1, res)					\
 	struct arm_smccc_res   *___res = res;				\
-	register u32           r0 asm("r0") = a0;			\
-	register typeof(a1)    r1 asm("r1") = a1;			\
+	register unsigned long r0 asm("r0") = (u32)a0;			\
+	register unsigned long r1 asm("r1") = a1;			\
 	register unsigned long r2 asm("r2");				\
 	register unsigned long r3 asm("r3")
 
 #define __declare_arg_2(a0, a1, a2, res)				\
 	struct arm_smccc_res   *___res = res;				\
-	register u32           r0 asm("r0") = a0;			\
-	register typeof(a1)    r1 asm("r1") = a1;			\
-	register typeof(a2)    r2 asm("r2") = a2;			\
+	register unsigned long r0 asm("r0") = (u32)a0;			\
+	register unsigned long r1 asm("r1") = a1;			\
+	register unsigned long r2 asm("r2") = a2;			\
 	register unsigned long r3 asm("r3")
 
 #define __declare_arg_3(a0, a1, a2, a3, res)				\
 	struct arm_smccc_res   *___res = res;				\
-	register u32           r0 asm("r0") = a0;			\
-	register typeof(a1)    r1 asm("r1") = a1;			\
-	register typeof(a2)    r2 asm("r2") = a2;			\
-	register typeof(a3)    r3 asm("r3") = a3
+	register unsigned long r0 asm("r0") = (u32)a0;			\
+	register unsigned long r1 asm("r1") = a1;			\
+	register unsigned long r2 asm("r2") = a2;			\
+	register unsigned long r3 asm("r3") = a3
 
 #define __declare_arg_4(a0, a1, a2, a3, a4, res)			\
 	__declare_arg_3(a0, a1, a2, a3, res);				\

[PATCH 4.9 93/94] arm/arm64: smccc-1.1: Handle function result as parameters

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marc Zyngier <marc.zyngier@arm.com>

[ Upstream commit 755a8bf5579d22eb5636685c516d8dede799e27b ]

If someone has the silly idea to write something along those lines:

	extern u64 foo(void);

	void bar(struct arm_smccc_res *res)
	{
		arm_smccc_1_1_smc(0xbad, foo(), res);
	}

they are in for a surprise, as this gets compiled as:

	0000000000000588 <bar>:
	 588:   a9be7bfd        stp     x29, x30, [sp, #-32]!
	 58c:   910003fd        mov     x29, sp
	 590:   f9000bf3        str     x19, [sp, #16]
	 594:   aa0003f3        mov     x19, x0
	 598:   aa1e03e0        mov     x0, x30
	 59c:   94000000        bl      0 <_mcount>
	 5a0:   94000000        bl      0 <foo>
	 5a4:   aa0003e1        mov     x1, x0
	 5a8:   d4000003        smc     #0x0
	 5ac:   b4000073        cbz     x19, 5b8 <bar+0x30>
	 5b0:   a9000660        stp     x0, x1, [x19]
	 5b4:   a9010e62        stp     x2, x3, [x19, #16]
	 5b8:   f9400bf3        ldr     x19, [sp, #16]
	 5bc:   a8c27bfd        ldp     x29, x30, [sp], #32
	 5c0:   d65f03c0        ret
	 5c4:   d503201f        nop

The call to foo "overwrites" the x0 register for the return value,
and we end up calling the wrong secure service.

A solution is to evaluate all the parameters before assigning
anything to specific registers, leading to the expected result:

	0000000000000588 <bar>:
	 588:   a9be7bfd        stp     x29, x30, [sp, #-32]!
	 58c:   910003fd        mov     x29, sp
	 590:   f9000bf3        str     x19, [sp, #16]
	 594:   aa0003f3        mov     x19, x0
	 598:   aa1e03e0        mov     x0, x30
	 59c:   94000000        bl      0 <_mcount>
	 5a0:   94000000        bl      0 <foo>
	 5a4:   aa0003e1        mov     x1, x0
	 5a8:   d28175a0        mov     x0, #0xbad
	 5ac:   d4000003        smc     #0x0
	 5b0:   b4000073        cbz     x19, 5bc <bar+0x34>
	 5b4:   a9000660        stp     x0, x1, [x19]
	 5b8:   a9010e62        stp     x2, x3, [x19, #16]
	 5bc:   f9400bf3        ldr     x19, [sp, #16]
	 5c0:   a8c27bfd        ldp     x29, x30, [sp], #32
	 5c4:   d65f03c0        ret

Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/arm-smccc.h |   30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -205,41 +205,51 @@ asmlinkage void __arm_smccc_hvc(unsigned
 	register unsigned long r3 asm("r3")
 
 #define __declare_arg_1(a0, a1, res)					\
+	typeof(a1) __a1 = a1;						\
 	struct arm_smccc_res   *___res = res;				\
 	register unsigned long r0 asm("r0") = (u32)a0;			\
-	register unsigned long r1 asm("r1") = a1;			\
+	register unsigned long r1 asm("r1") = __a1;			\
 	register unsigned long r2 asm("r2");				\
 	register unsigned long r3 asm("r3")
 
 #define __declare_arg_2(a0, a1, a2, res)				\
+	typeof(a1) __a1 = a1;						\
+	typeof(a2) __a2 = a2;						\
 	struct arm_smccc_res   *___res = res;				\
 	register unsigned long r0 asm("r0") = (u32)a0;			\
-	register unsigned long r1 asm("r1") = a1;			\
-	register unsigned long r2 asm("r2") = a2;			\
+	register unsigned long r1 asm("r1") = __a1;			\
+	register unsigned long r2 asm("r2") = __a2;			\
 	register unsigned long r3 asm("r3")
 
 #define __declare_arg_3(a0, a1, a2, a3, res)				\
+	typeof(a1) __a1 = a1;						\
+	typeof(a2) __a2 = a2;						\
+	typeof(a3) __a3 = a3;						\
 	struct arm_smccc_res   *___res = res;				\
 	register unsigned long r0 asm("r0") = (u32)a0;			\
-	register unsigned long r1 asm("r1") = a1;			\
-	register unsigned long r2 asm("r2") = a2;			\
-	register unsigned long r3 asm("r3") = a3
+	register unsigned long r1 asm("r1") = __a1;			\
+	register unsigned long r2 asm("r2") = __a2;			\
+	register unsigned long r3 asm("r3") = __a3
 
 #define __declare_arg_4(a0, a1, a2, a3, a4, res)			\
+	typeof(a4) __a4 = a4;						\
 	__declare_arg_3(a0, a1, a2, a3, res);				\
-	register typeof(a4) r4 asm("r4") = a4
+	register unsigned long r4 asm("r4") = __a4
 
 #define __declare_arg_5(a0, a1, a2, a3, a4, a5, res)			\
+	typeof(a5) __a5 = a5;						\
 	__declare_arg_4(a0, a1, a2, a3, a4, res);			\
-	register typeof(a5) r5 asm("r5") = a5
+	register unsigned long r5 asm("r5") = __a5
 
 #define __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res)		\
+	typeof(a6) __a6 = a6;						\
 	__declare_arg_5(a0, a1, a2, a3, a4, a5, res);			\
-	register typeof(a6) r6 asm("r6") = a6
+	register unsigned long r6 asm("r6") = __a6
 
 #define __declare_arg_7(a0, a1, a2, a3, a4, a5, a6, a7, res)		\
+	typeof(a7) __a7 = a7;						\
 	__declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res);		\
-	register typeof(a7) r7 asm("r7") = a7
+	register unsigned long r7 asm("r7") = __a7
 
 #define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__)
 #define __declare_args(count, ...)  ___declare_args(count, __VA_ARGS__)

[PATCH 4.9 94/94] i2c: i801: Allow ACPI AML access I/O ports not reserved for SMBus

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mika Westerberg <mika.westerberg@linux.intel.com>

[ Upstream commit 7fd6d98b89f382d414e1db528e29a67bbd749457 ]

Commit 7ae81952cda ("i2c: i801: Allow ACPI SystemIO OpRegion to conflict
with PCI BAR") made it possible for AML code to access SMBus I/O ports
by installing custom SystemIO OpRegion handler and blocking i80i driver
access upon first AML read/write to this OpRegion.

However, while ThinkPad T560 does have SystemIO OpRegion declared under
the SMBus device, it does not access any of the SMBus registers:

    Device (SMBU)
    {
        ...

        OperationRegion (SMBP, PCI_Config, 0x50, 0x04)
        Field (SMBP, DWordAcc, NoLock, Preserve)
        {
            ,   5,
            TCOB,   11,
            Offset (0x04)
        }

        Name (TCBV, 0x00)
        Method (TCBS, 0, NotSerialized)
        {
            If ((TCBV == 0x00))
            {
            TCBV = (\_SB.PCI0.SMBU.TCOB << 0x05)
            }

            Return (TCBV) /* \_SB_.PCI0.SMBU.TCBV */
        }

        OperationRegion (TCBA, SystemIO, TCBS (), 0x10)
        Field (TCBA, ByteAcc, NoLock, Preserve)
        {
            Offset (0x04),
            ,   9,
            CPSC,   1
        }
    }

Problem with the current approach is that it blocks all I/O port access
and because this system has touchpad connected to the SMBus controller
after first AML access (happens during suspend/resume cycle) the
touchpad fails to work anymore.

Fix this so that we allow ACPI AML I/O port access if it does not touch
the region reserved for the SMBus.

Fixes: 7ae81952cda ("i2c: i801: Allow ACPI SystemIO OpRegion to conflict with PCI BAR")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=200737
Reported-by: Yussuf Khalil <dev@pp3345.net>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/busses/i2c-i801.c |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1408,6 +1408,13 @@ static void i801_add_tco(struct i801_pri
 }
 
 #ifdef CONFIG_ACPI
+static bool i801_acpi_is_smbus_ioport(const struct i801_priv *priv,
+				      acpi_physical_address address)
+{
+	return address >= priv->smba &&
+	       address <= pci_resource_end(priv->pci_dev, SMBBAR);
+}
+
 static acpi_status
 i801_acpi_io_handler(u32 function, acpi_physical_address address, u32 bits,
 		     u64 *value, void *handler_context, void *region_context)
@@ -1423,7 +1430,7 @@ i801_acpi_io_handler(u32 function, acpi_
 	 */
 	mutex_lock(&priv->acpi_lock);
 
-	if (!priv->acpi_reserved) {
+	if (!priv->acpi_reserved && i801_acpi_is_smbus_ioport(priv, address)) {
 		priv->acpi_reserved = true;
 
 		dev_warn(&pdev->dev, "BIOS is accessing SMBus registers\n");

Re: [PATCH 4.9 00/94] 4.9.131-stable review

[Nathan Chancellor]

On Tue, Oct 02, 2018 at 06:24:14AM -0700, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.9.131 release.
> There are 94 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu Oct  4 13:24:37 UTC 2018.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.131-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h
> 

Merged, compiled with -Werror, and installed onto my OnePlus 6.

No initial issues noticed in dmesg or general usage.

Thanks!
Nathan

Re: [PATCH 4.9 00/94] 4.9.131-stable review

[Shuah Khan]

On 10/02/2018 07:24 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.9.131 release.
> There are 94 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu Oct  4 13:24:37 UTC 2018.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.131-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h
> 

Compiled and booted on my test system. No dmesg regressions.

thanks,
-- Shuah

Re: [PATCH 4.9 00/94] 4.9.131-stable review

[Guenter Roeck]

On 10/02/2018 06:24 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.9.131 release.
> There are 94 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu Oct  4 13:24:37 UTC 2018.
> Anything received after that time might be too late.
> 


Build results:
	total: 151 pass: 151 fail: 0
Qemu test results:
	total: 308 pass: 307 fail: 1
Failed tests:
	powerpc:g3beige:ppc_book3s_defconfig:nosmp:ide:rootfs

Details are available at https://kerneltests.org/builders/.

Guenter

Re: [PATCH 4.9 00/94] 4.9.131-stable review

[Dan Rue]

On Tue, Oct 02, 2018 at 06:24:14AM -0700, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 4.9.131 release.
> There are 94 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu Oct  4 13:24:37 UTC 2018.
> Anything received after that time might be too late.

Results from Linaro’s test farm.
No regressions on arm64, arm, x86_64, and i386.

Summary
------------------------------------------------------------------------

kernel: 4.9.131-rc1
git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git branch: linux-4.9.y
git commit: f80dcfd9c7f99eda914bb380a43af8c56dc0e4cd
git describe: v4.9.130-95-gf80dcfd9c7f9
Test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-4.9-oe/build/v4.9.130-95-gf80dcfd9c7f9


No regressions (compared to build v4.9.130)


Ran 21282 total tests in the following environments and test suites.

Environments
--------------
- dragonboard-410c - arm64
- hi6220-hikey - arm64
- i386
- juno-r2 - arm64
- qemu_arm
- qemu_arm64
- qemu_i386
- qemu_x86_64
- x15 - arm
- x86_64

Test Suites
-----------
* boot
* kselftest
* libhugetlbfs
* ltp-cap_bounds-tests
* ltp-containers-tests
* ltp-cve-tests
* ltp-fcntl-locktests-tests
* ltp-filecaps-tests
* ltp-fs-tests
* ltp-fs_bind-tests
* ltp-fs_perms_simple-tests
* ltp-fsx-tests
* ltp-hugetlb-tests
* ltp-io-tests
* ltp-ipc-tests
* ltp-math-tests
* ltp-nptl-tests
* ltp-pty-tests
* ltp-sched-tests
* ltp-securebits-tests
* ltp-syscalls-tests
* ltp-timers-tests
* ltp-open-posix-tests
* kselftest-vsyscall-mode-native
* kselftest-vsyscall-mode-none

-- 
Linaro LKFT
https://lkft.linaro.org