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>
diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c
index 5585425..9b55645 100644
--- a/drivers/gpio/gpio-sta2x11.c
+++ b/drivers/gpio/gpio-sta2x11.c
@@ -371,6 +371,8 @@
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);