gpio-charger: Check result of kzalloc

Since kzalloc can return NULL we have to check its result.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c
index fccbe99b619c..8458cafcd2b2 100644
--- a/drivers/power/gpio-charger.c
+++ b/drivers/power/gpio-charger.c
@@ -87,6 +87,10 @@ static int __devinit gpio_charger_probe(struct platform_device *pdev)
         }
 
         gpio_charger = kzalloc(sizeof(*gpio_charger), GFP_KERNEL);
+        if (!gpio_charger) {
+                dev_err(&pdev->dev, "Failed to alloc driver structure\n");
+                return -ENOMEM;
+        }
 
         charger = &gpio_charger->charger;