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rtc: ac100: Add NULL checking for devm_kzalloc call
author
Axel Lin
<axel.lin@ingics.com>
Fri, 9 Sep 2016 10:03:54 +0000
(18:03 +0800)
committer
Alexandre Belloni
<alexandre.belloni@free-electrons.com>
Wed, 21 Sep 2016 22:14:41 +0000
(
00:14
+0200)
devm_kzalloc can return NULL, add NULL checking to prevent NULL pointer
dereference.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
drivers/rtc/rtc-ac100.c
patch
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diff --git
a/drivers/rtc/rtc-ac100.c
b/drivers/rtc/rtc-ac100.c
index
2d0bb02
..
9e33618
100644
(file)
--- a/
drivers/rtc/rtc-ac100.c
+++ b/
drivers/rtc/rtc-ac100.c
@@
-554,6
+554,9
@@
static int ac100_rtc_probe(struct platform_device *pdev)
int ret;
chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
platform_set_drvdata(pdev, chip);
chip->dev = &pdev->dev;
chip->regmap = ac100->regmap;