From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Juergen Gross <jgross@suse.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: [PATCH 4.4 16/45] xen, fbfront: fix connecting to backend
Date: Wed, 19 Apr 2017 16:55:58 +0200 [thread overview]
Message-ID: <20170419141635.428876357@linuxfoundation.org> (raw)
In-Reply-To: <20170419141634.793081968@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Juergen Gross <jgross@suse.com>
commit 9121b15b5628b38b4695282dc18c553440e0f79b upstream.
Connecting to the backend isn't working reliably in xen-fbfront: in
case XenbusStateInitWait of the backend has been missed the backend
transition to XenbusStateConnected will trigger the connected state
only without doing the actions required when the backend has
connected.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/video/fbdev/xen-fbfront.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/video/fbdev/xen-fbfront.c
+++ b/drivers/video/fbdev/xen-fbfront.c
@@ -644,7 +644,6 @@ static void xenfb_backend_changed(struct
break;
case XenbusStateInitWait:
-InitWait:
xenbus_switch_state(dev, XenbusStateConnected);
break;
@@ -655,7 +654,8 @@ InitWait:
* get Connected twice here.
*/
if (dev->state != XenbusStateConnected)
- goto InitWait; /* no InitWait seen yet, fudge it */
+ /* no InitWait seen yet, fudge it */
+ xenbus_switch_state(dev, XenbusStateConnected);
if (xenbus_scanf(XBT_NIL, info->xbdev->otherend,
"request-update", "%d", &val) < 0)
next prev parent reply other threads:[~2017-04-19 15:06 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-19 14:55 [PATCH 4.4 00/45] 4.4.63-stable review Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 01/45] cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 02/45] thp: fix MADV_DONTNEED vs clear soft dirty race Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 03/45] drm/nouveau/mpeg: mthd returns true on success now Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 04/45] drm/nouveau/mmu/nv4a: use nv04 mmu rather than the nv44 one Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 05/45] CIFS: store results of cifs_reopen_file to avoid infinite wait Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 06/45] Input: xpad - add support for Razer Wildcat gamepad Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 07/45] perf/x86: Avoid exposing wrong/stale data in intel_pmu_lbr_read_32() Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 08/45] x86/vdso: Ensure vdso32_enabled gets set to valid values only Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 09/45] x86/vdso: Plug race between mapping and ELF header setup Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 10/45] acpi, nfit, libnvdimm: fix interleave set cookie calculation (64-bit comparison) Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 11/45] iscsi-target: Fix TMR reference leak during session shutdown Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 12/45] iscsi-target: Drop work-around for legacy GlobalSAN initiator Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 13/45] scsi: sr: Sanity check returned mode data Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 14/45] scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable Greg Kroah-Hartman
2017-04-19 14:55 ` [PATCH 4.4 15/45] scsi: sd: Fix capacity calculation with 32-bit sector_t Greg Kroah-Hartman
2017-04-19 14:55 ` Greg Kroah-Hartman [this message]
2017-04-19 14:55 ` [PATCH 4.4 17/45] libnvdimm: fix reconfig_mutex, mmap_sem, and jbd2_handle lockdep splat Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 18/45] irqchip/irq-imx-gpcv2: Fix spinlock initialization Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 19/45] ftrace: Fix removing of second function probe Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 20/45] char: Drop bogus dependency of DEVPORT on !M68K Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 21/45] char: lack of bool string made CONFIG_DEVPORT always on Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 22/45] Revert "MIPS: Lantiq: Fix cascaded IRQ setup" Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 23/45] kvm: fix page struct leak in handle_vmon Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 24/45] zram: do not use copy_page with non-page aligned address Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 25/45] powerpc: Disable HFSCR[TM] if TM is not supported Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 26/45] crypto: ahash - Fix EINPROGRESS notification callback Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 27/45] ath9k: fix NULL pointer dereference Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 28/45] [media] dvb-usb-v2: avoid use-after-free Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 29/45] ext4: fix inode checksum calculation problem if i_extra_size is small Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 31/45] rtc: tegra: Implement clock handling Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 32/45] mm: Tighten x86 /dev/mem with zeroing reads Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 33/45] [media] dvb-usb: dont use stack for firmware load Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 35/45] virtio-console: avoid DMA from stack Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 37/45] rtl8150: Use heap buffers for all register access Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 38/45] catc: Combine failure cleanup code in catc_probe() Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 39/45] catc: Use heap buffer for memory size test Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 40/45] ibmveth: calculate gso_segs for large packets Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 41/45] SUNRPC: fix refcounting problems with auth_gss messages Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 42/45] tty/serial: atmel: RS485 half duplex w/DMA: enable RX after TX is done Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 44/45] sctp: deny peeloff operation on asocs with threads sleeping on it Greg Kroah-Hartman
2017-04-19 14:56 ` [PATCH 4.4 45/45] MIPS: fix Select HAVE_IRQ_EXIT_ON_IRQ_STACK patch Greg Kroah-Hartman
2017-04-19 20:39 ` [PATCH 4.4 00/45] 4.4.63-stable review Shuah Khan
2017-04-19 23:21 ` Guenter Roeck
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