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authorSachin Kamat <sachin.kamat@linaro.org>2013-06-12 08:02:45 +0400
committerLinus Walleij <linus.walleij@linaro.org>2013-06-17 12:26:34 +0400
commitcd73891647a19f4b52f23d23f5c68175b93b56fe (patch)
treeed44cb1b9358a869454a2e3e16fc47860ddc3b9c /drivers/gpio
parentea4a21a298e1a9c4e5ea58309850477b2a19aa87 (diff)
downloadlinux-cd73891647a19f4b52f23d23f5c68175b93b56fe.tar.xz
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>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-sta2x11.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c
index 558542552aae..9b5564564bcd 100644
--- a/drivers/gpio/gpio-sta2x11.c
+++ b/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);