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gpio-sta2x11: Fix potential NULL pointer dereference

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>
Sachin Kamat 12 years ago
parent
commit
cd73891647
1 changed files with 2 additions and 0 deletions
  1. 2 0
      drivers/gpio/gpio-sta2x11.c

+ 2 - 0
drivers/gpio/gpio-sta2x11.c

@@ -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);