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rtc: ac100: Add NULL checking for devm_kzalloc call

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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>
This commit is contained in:
Axel Lin 2016-09-09 18:03:54 +08:00 committed by Alexandre Belloni
parent ee85bb5bbe
commit 473195f80f
1 changed files with 3 additions and 0 deletions
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3
drivers/rtc/rtc-ac100.c
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@ -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;