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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Lukas Wunner <lukas@wunner.de>, Frank Pavlic <f.pavlic@kunbus.de>,
	Stephen Boyd <sboyd@codeaurora.org>, Nishanth Menon <nm@ti.com>,
	"David S . Miller" <davem@davemloft.net>,
	Sasha Levin <sashal@kernel.org>,
	netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 28/68] net: ks8851: Reassert reset pin if chip ID check fails
Date: Mon, 22 Apr 2019 15:44:36 -0400	[thread overview]
Message-ID: <20190422194516.11634-28-sashal@kernel.org> (raw)
In-Reply-To: <20190422194516.11634-1-sashal@kernel.org>

From: Lukas Wunner <lukas@wunner.de>

[ Upstream commit 761cfa979a0c177d6c2d93ef5585cd79ae49a7d5 ]

Commit 73fdeb82e963 ("net: ks8851: Add optional vdd_io regulator and
reset gpio") amended the ks8851 driver to briefly assert the chip's
reset pin on probe. It also amended the probe routine's error path to
reassert the reset pin if a subsequent initialization step fails.

However the commit misplaced reassertion of the reset pin in the error
path such that it is not performed if the check of the Chip ID and
Enable Register (CIDER) fails. The error path is therefore slightly
asymmetrical to the probe routine's body. Fix it.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Frank Pavlic <f.pavlic@kunbus.de>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
---
 drivers/net/ethernet/micrel/ks8851.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c
index a93f8e842c07..1633fa5c709c 100644
--- a/drivers/net/ethernet/micrel/ks8851.c
+++ b/drivers/net/ethernet/micrel/ks8851.c
@@ -1554,9 +1554,9 @@ static int ks8851_probe(struct spi_device *spi)
 	free_irq(ndev->irq, ks);
 
 err_irq:
+err_id:
 	if (gpio_is_valid(gpio))
 		gpio_set_value(gpio, 0);
-err_id:
 	regulator_disable(ks->vdd_reg);
 err_reg:
 	regulator_disable(ks->vdd_io);
-- 
2.19.1


  parent reply	other threads:[~2019-04-22 20:03 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-22 19:44 [PATCH AUTOSEL 4.19 01/68] ARM: dts: bcm283x: Fix hdmi hpd gpio pull Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 02/68] s390: limit brk randomization to 32MB Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 03/68] net: ieee802154: fix a potential NULL pointer dereference Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 04/68] ieee802154: hwsim: propagate genlmsg_reply return code Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 05/68] net: stmmac: don't set own bit too early for jumbo frames Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 06/68] qlcnic: Avoid potential NULL pointer dereference Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 07/68] xsk: fix umem memory leak on cleanup Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 08/68] staging: axis-fifo: add CONFIG_OF dependency Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 09/68] staging, mt7621-pci: fix build without pci support Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 10/68] netfilter: nft_set_rbtree: check for inactive element after flag mismatch Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 11/68] netfilter: bridge: set skb transport_header before entering NF_INET_PRE_ROUTING Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 12/68] netfilter: fix NETFILTER_XT_TARGET_TEE dependencies Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 13/68] netfilter: ip6t_srh: fix NULL pointer dereferences Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 14/68] s390/qeth: fix race when initializing the IP address table Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 15/68] ARM: imx51: fix a leaked reference by adding missing of_node_put Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 16/68] sc16is7xx: missing unregister/delete driver on error in sc16is7xx_init() Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 17/68] serial: ar933x_uart: Fix build failure with disabled console Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 18/68] KVM: arm64: Reset the PMU in preemptible context Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 19/68] KVM: arm/arm64: vgic-its: Take the srcu lock when writing to guest memory Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 20/68] KVM: arm/arm64: vgic-its: Take the srcu lock when parsing the memslots Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 21/68] usb: dwc3: pci: add support for Comet Lake PCH ID Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 22/68] usb: gadget: net2280: Fix overrun of OUT messages Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 23/68] usb: gadget: net2280: Fix net2280_dequeue() Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 24/68] usb: gadget: net2272: Fix net2272_dequeue() Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 25/68] ARM: dts: pfla02: increase phy reset duration Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 26/68] i2c: i801: Add support for Intel Comet Lake Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 27/68] net: ks8851: Dequeue RX packets explicitly Sasha Levin
2019-04-22 19:44 ` Sasha Levin [this message]
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 29/68] net: ks8851: Delay requesting IRQ until opened Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 30/68] net: ks8851: Set initial carrier state to down Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 31/68] staging: rtl8188eu: Fix potential NULL pointer dereference of kcalloc Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 32/68] staging: rtlwifi: rtl8822b: fix to avoid potential NULL pointer dereference Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 33/68] staging: rtl8712: uninitialized memory in read_bbreg_hdl() Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 34/68] staging: rtlwifi: Fix potential NULL pointer dereference of kzalloc Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 35/68] net: macb: Add null check for PCLK and HCLK Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 36/68] net/sched: don't dereference a->goto_chain to read the chain index Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 37/68] ARM: dts: imx6qdl: Fix typo in imx6qdl-icore-rqs.dtsi Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 38/68] drm/tegra: hub: Fix dereference before check Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 39/68] NFS: Fix a typo in nfs_init_timeout_values() Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 40/68] net: xilinx: fix possible object reference leak Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 41/68] net: ibm: " Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 42/68] net: ethernet: ti: " Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 43/68] drm: Fix drm_release() and device unplug Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 44/68] gpio: aspeed: fix a potential NULL pointer dereference Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 45/68] drm/meson: Fix invalid pointer in meson_drv_unbind() Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 46/68] drm/meson: Uninstall IRQ handler Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 47/68] ARM: davinci: fix build failure with allnoconfig Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 48/68] libceph: fix breakage caused by multipage bvecs Sasha Levin
2019-04-23  8:27   ` Ilya Dryomov
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 49/68] scsi: mpt3sas: Fix kernel panic during expander reset Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 50/68] scsi: aacraid: Insure we don't access PCIe space during AER/EEH Sasha Levin
2019-04-22 19:44 ` [PATCH AUTOSEL 4.19 51/68] scsi: qla4xxx: fix a potential NULL pointer dereference Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 52/68] usb: usb251xb: fix to avoid " Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 53/68] leds: trigger: netdev: fix refcnt leak on interface rename Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 54/68] x86/realmode: Don't leak the trampoline kernel address Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 55/68] usb: u132-hcd: fix resource leak Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 56/68] tty: fix NULL pointer issue when tty_port ops is not set Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 57/68] ceph: fix use-after-free on symlink traversal Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 58/68] scsi: zfcp: reduce flood of fcrscn1 trace records on multi-element RSCN Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 59/68] x86/mm: Don't exceed the valid physical address space Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 60/68] libata: fix using DMA buffers on stack Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 61/68] gpio: of: Fix of_gpiochip_add() error path Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 62/68] nvme-multipath: relax ANA state check Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 63/68] perf machine: Update kernel map address and re-order properly Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 64/68] kconfig/[mn]conf: handle backspace (^H) key Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 65/68] iommu/amd: Reserve exclusion range in iova-domain Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 66/68] ptrace: take into account saved_sigmask in PTRACE{GET,SET}SIGMASK Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 67/68] leds: pca9532: fix a potential NULL pointer dereference Sasha Levin
2019-04-22 19:45 ` [PATCH AUTOSEL 4.19 68/68] leds: trigger: netdev: use memcpy in device_name_store Sasha Levin

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