From: Sasha Levin <Alexander.Levin@microsoft.com>
To: "stable@vger.kernel.org" <stable@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Zhouyang Jia <jiazhouyang09@gmail.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL 4.4 15/20] rtc: bq4802: add error handling for devm_ioremap
Date: Sat, 15 Sep 2018 01:35:14 +0000 [thread overview]
Message-ID: <20180915013502.180110-15-alexander.levin@microsoft.com> (raw)
In-Reply-To: <20180915013502.180110-1-alexander.levin@microsoft.com>
From: Zhouyang Jia <jiazhouyang09@gmail.com>
[ Upstream commit 7874b919866ba91bac253fa219d3d4c82bb944df ]
When devm_ioremap fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling devm_ioremap.
Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
drivers/rtc/rtc-bq4802.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/rtc/rtc-bq4802.c b/drivers/rtc/rtc-bq4802.c
index bd170cb3361c..5747a54cbd42 100644
--- a/drivers/rtc/rtc-bq4802.c
+++ b/drivers/rtc/rtc-bq4802.c
@@ -164,6 +164,10 @@ static int bq4802_probe(struct platform_device *pdev)
} else if (p->r->flags & IORESOURCE_MEM) {
p->regs = devm_ioremap(&pdev->dev, p->r->start,
resource_size(p->r));
+ if (!p->regs){
+ err = -ENOMEM;
+ goto out;
+ }
p->read = bq4802_read_mem;
p->write = bq4802_write_mem;
} else {
--
2.17.1
next prev parent reply other threads:[~2018-09-15 1:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-15 1:35 [PATCH AUTOSEL 4.4 01/20] binfmt_elf: Respect error return from `regset->active' Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 02/20] audit: fix use-after-free in audit_add_watch Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 03/20] mtdchar: fix overflows in adjustment of `count` Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 04/20] mtd: rawnand: sunxi: Add an U suffix to NFC_PAGE_OP definition Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 05/20] MIPS: loongson64: cs5536: Fix PCI_OHCI_INT_REG reads Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 07/20] ARM: hisi: fix error handling and missing of_node_put Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 06/20] ARM: hisi: handle of_iomap and fix " Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 09/20] drm/nouveau: tegra: Detach from ARM DMA/IOMMU mapping Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 08/20] ARM: hisi: check of_iomap and fix missing of_node_put Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 10/20] parport: sunbpp: fix error return code Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 11/20] coresight: Handle errors in finding input/output ports Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 12/20] coresight: tpiu: Fix disabling timeouts Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 13/20] gpiolib: Mark gpio_suffixes array with __maybe_unused Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 14/20] drm/amdkfd: Fix error codes in kfd_get_process Sasha Levin
2018-09-15 1:35 ` Sasha Levin [this message]
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 16/20] ALSA: pcm: Fix snd_interval_refine first/last with open min/max Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 17/20] selftest: timers: Tweak raw_skew to SKIP when ADJ_OFFSET/other clock adjustments are in progress Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 18/20] drm/panel: type promotion bug in s6e8aa0_read_mtp_id() Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 19/20] IB/nes: Fix a compiler warning Sasha Levin
2018-09-15 1:35 ` [PATCH AUTOSEL 4.4 20/20] pinctrl: qcom: spmi-gpio: Fix pmic_gpio_config_get() to be compliant Sasha Levin
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