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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Yizhuo <yzhai003@ucr.edu>,
	Mark Brown <broonie@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.20 07/88] ASoC: Variable "val" in function rt274_i2c_probe() could be uninitialized
Date: Mon,  4 Mar 2019 09:21:50 +0100	[thread overview]
Message-ID: <20190304081630.861396149@linuxfoundation.org> (raw)
In-Reply-To: <20190304081630.610632175@linuxfoundation.org>

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

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

[ Upstream commit 8c3590de0a378c2449fc1aec127cc693632458e4 ]

Inside function rt274_i2c_probe(), if regmap_read() function
returns -EINVAL, then local variable "val" leaves uninitialized
but used in if statement. This is potentially unsafe.

Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/codecs/rt274.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt274.c b/sound/soc/codecs/rt274.c
index 0ef966d56bac3..e2855ab9a2c6b 100644
--- a/sound/soc/codecs/rt274.c
+++ b/sound/soc/codecs/rt274.c
@@ -1128,8 +1128,11 @@ static int rt274_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
-	regmap_read(rt274->regmap,
+	ret = regmap_read(rt274->regmap,
 		RT274_GET_PARAM(AC_NODE_ROOT, AC_PAR_VENDOR_ID), &val);
+	if (ret)
+		return ret;
+
 	if (val != RT274_VENDOR_ID) {
 		dev_err(&i2c->dev,
 			"Device with ID register %#x is not rt274\n", val);
-- 
2.19.1




  parent reply	other threads:[~2019-03-04  8:32 UTC|newest]

Thread overview: 101+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-04  8:21 [PATCH 4.20 00/88] 4.20.14-stable review Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 01/88] genirq/matrix: Improve target CPU selection for managed interrupts Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 02/88] scsi: libsas: Fix rphy phy_identifier for PHYs with end devices attached Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 03/88] drm/msm: Unblock writer if reader closes file Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 04/88] ASoC: Intel: Haswell/Broadwell: fix setting for .dynamic field Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 05/88] ALSA: compress: prevent potential divide by zero bugs Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 06/88] ASoC: rt5682: Fix recording no sound issue Greg Kroah-Hartman
2019-03-04  8:21 ` Greg Kroah-Hartman [this message]
2019-03-04  8:21 ` [PATCH 4.20 08/88] clk: tegra: dfll: Fix a potential Oop in remove() Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 09/88] clk: sysfs: fix invalid JSON in clk_dump Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 10/88] clk: vc5: Abort clock configuration without upstream clock Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 11/88] thermal: int340x_thermal: Fix a NULL vs IS_ERR() check Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 12/88] usb: dwc3: gadget: synchronize_irq dwc irq in suspend Greg Kroah-Hartman
2019-03-04  8:46   ` He, Bo
2019-03-04  8:53     ` Greg Kroah-Hartman
2019-03-04  9:03       ` Marek Szyprowski
2019-03-04  9:44         ` Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 13/88] usb: dwc3: gadget: Fix the uninitialized link_state when udc starts Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 14/88] usb: gadget: Potential NULL dereference on allocation error Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 15/88] HID: i2c-hid: Disable runtime PM on Goodix touchpad Greg Kroah-Hartman
2019-03-04  8:21 ` [PATCH 4.20 16/88] ASoC: core: Make snd_soc_find_component() more robust Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 17/88] selftests: rtc: rtctest: fix alarm tests Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 18/88] selftests: rtc: rtctest: add alarm test on minute boundary Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 19/88] genirq: Make sure the initial affinity is not empty Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 20/88] x86/mm/mem_encrypt: Fix erroneous sizeof() Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 21/88] ASoC: rt5682: Fix PLL source register definitions Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 22/88] ASoC: dapm: change snprintf to scnprintf for possible overflow Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 23/88] ASoC: imx-audmux: " Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 24/88] selftests/vm/gup_benchmark.c: match gup struct to kernel Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 25/88] phy: ath79-usb: Fix the power on error path Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 26/88] phy: ath79-usb: Fix the main reset name to match the DT binding Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 27/88] selftests: seccomp: use LDLIBS instead of LDFLAGS Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 28/88] selftests: gpio-mockup-chardev: Check asprintf() for error Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 29/88] irqchip/gic-v3-mbi: Fix uninitialized mbi_lock Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 30/88] ARC: fix __ffs return value to avoid build warnings Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 31/88] ARC: show_regs: lockdep: avoid page allocator Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 32/88] drivers: thermal: int340x_thermal: Fix sysfs race condition Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 33/88] staging: rtl8723bs: Fix build error with Clang when inlining is disabled Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 34/88] mac80211: fix miscounting of ttl-dropped frames Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 35/88] sched/wait: Fix rcuwait_wake_up() ordering Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 36/88] sched/wake_q: Fix wakeup ordering for wake_q Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 37/88] futex: Fix (possible) missed wakeup Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 38/88] locking/rwsem: " Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 39/88] drm/amd/powerplay: OD setting fix on Vega10 Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 40/88] tty: serial: qcom_geni_serial: Allow mctrl when flow control is disabled Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 41/88] serial: fsl_lpuart: fix maximum acceptable baud rate with over-sampling Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 42/88] drm/sun4i: hdmi: Fix usage of TMDS clock Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 43/88] staging: android: ion: Support cpu access during dma_buf_detach Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 44/88] direct-io: allow direct writes to empty inodes Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 45/88] writeback: synchronize sync(2) against cgroup writeback membership switches Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 46/88] scsi: lpfc: nvme: avoid hang / use-after-free when destroying localport Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 47/88] scsi: lpfc: nvmet: avoid hang / use-after-free when destroying targetport Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 48/88] scsi: csiostor: fix NULL pointer dereference in csio_vport_set_state() Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 49/88] net: altera_tse: fix connect_local_phy error path Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 50/88] hv_netvsc: Fix ethtool change hash key error Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 51/88] hv_netvsc: Refactor assignments of struct netvsc_device_info Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 52/88] hv_netvsc: Fix hash key value reset after other ops Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 53/88] nvme-rdma: fix timeout handler Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 54/88] nvme-multipath: drop optimization for static ANA group IDs Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 55/88] cifs: fix memory leak of an allocated cifs_ntsd structure Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 56/88] drm/msm: Fix A6XX support for opp-level Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 57/88] drm/msm: avoid unused function warning Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 58/88] net: usb: asix: ax88772_bind return error when hw_reset fail Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 59/88] net: dev_is_mac_header_xmit() true for ARPHRD_RAWIP Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 60/88] ibmveth: Do not process frames after calling napi_reschedule Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 61/88] mac80211: dont initiate TDLS connection if station is not associated to AP Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 62/88] mac80211: Add attribute aligned(2) to struct action Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 63/88] cfg80211: extend range deviation for DMG Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 64/88] svm: Fix AVIC incomplete IPI emulation Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 65/88] KVM: nSVM: clear events pending from svm_complete_interrupts() when exiting to L1 Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 66/88] kvm: selftests: Fix region overlap check in kvm_util Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 67/88] KVM: selftests: check returned evmcs version range Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 68/88] mmc: spi: Fix card detection during probe Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 69/88] mmc: tmio_mmc_core: dont claim spurious interrupts Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 70/88] mmc: tmio: fix access width of Block Count Register Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 71/88] mmc: core: Fix NULL ptr crash from mmc_should_fail_request Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 72/88] mmc: cqhci: fix space allocated for transfer descriptor Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 73/88] mmc: cqhci: Fix a tiny potential memory leak on error condition Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 74/88] mmc: sdhci-esdhc-imx: correct the fix of ERR004536 Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 75/88] mm: enforce min addr even if capable() in expand_downwards() Greg Kroah-Hartman
2019-03-04  8:22 ` [PATCH 4.20 76/88] drm: Block fb changes for async plane updates Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 77/88] hugetlbfs: fix races and page leaks during migration Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 78/88] crypto: ccree - add missing inline qualifier Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 79/88] MIPS: fix truncation in __cmpxchg_small for short values Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 80/88] MIPS: BCM63XX: provide DMA masks for ethernet devices Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 81/88] MIPS: fix memory setup for platforms with PHYS_OFFSET != 0 Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 82/88] scsi: 3w-sas: fix calls to dma_set_mask_and_coherent() Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 83/88] scsi: csiostor: " Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 84/88] scsi: 3w-9xxx: " Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 85/88] scsi: aic94xx: " Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 86/88] arm64: dts: qcom: msm8998: Extend TZ reserved memory area Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 87/88] MIPS: eBPF: Fix icache flush end address Greg Kroah-Hartman
2019-03-04  8:23 ` [PATCH 4.20 88/88] x86/uaccess: Dont leak the AC flag into __put_user() value evaluation Greg Kroah-Hartman
2019-03-04 20:36 ` [PATCH 4.20 00/88] 4.20.14-stable review Naresh Kamboju
2019-03-05  7:58   ` Greg Kroah-Hartman
2019-03-05  3:39 ` Guenter Roeck
2019-03-05  7:58   ` Greg Kroah-Hartman
2019-03-05 14:07 ` Jon Hunter
2019-03-05 14:55   ` Greg Kroah-Hartman
2019-03-05 16:20 ` shuah
2019-03-05 16:51   ` Greg Kroah-Hartman

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