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gpio-sta2x11: Fix potential NULL pointer dereference

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devm_kzalloc can return NULL. Check for it before dereferencing.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Sachin Kamat 2013-06-12 09:32:45 +05:30 committed by Linus Walleij
parent ea4a21a298
commit cd73891647
1 changed files with 2 additions and 0 deletions
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2
drivers/gpio/gpio-sta2x11.c
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@ -371,6 +371,8 @@ static int gsta_probe(struct platform_device *dev)
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
chip = devm_kzalloc(&dev->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
chip->dev = &dev->dev;
chip->reg_base = devm_request_and_ioremap(&dev->dev, res);