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authorAxel Lin <axel.lin@ingics.com>2016-09-09 18:03:54 +0800
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-09-22 00:14:41 +0200
commit473195f80f3940afc8a1461831d74f9a44bba538 (patch)
tree8807076c4bd088a3923d6b765981f1002e2f701e /drivers/rtc/rtc-ac100.c
parentee85bb5bbe4ae690b48625874bc2b6ecc981326e (diff)
downloadlinux-473195f80f3940afc8a1461831d74f9a44bba538.tar.bz2
rtc: ac100: Add NULL checking for devm_kzalloc call
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>
Diffstat (limited to 'drivers/rtc/rtc-ac100.c')
-rw-r--r--drivers/rtc/rtc-ac100.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-ac100.c b/drivers/rtc/rtc-ac100.c
index 2d0bb02a25d9..9e336184491c 100644
--- 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;