video: ARM CLCD: Add missing error check for devm_kzalloc

This patch add a missing check on the return value of devm_kzalloc,
which would cause a NULL pointer dereference in a OOM situation.

Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c
index 32c0b6b28097f115f5a701d7a7d59f50d92d147d..9362424c2340490585fe02e4dfe950f53f2097af 100644 (file)
--- a/drivers/video/fbdev/amba-clcd.c
+++ b/drivers/video/fbdev/amba-clcd.c
@@ -599,6 +599,9 @@ static int clcdfb_of_get_mode(struct device *dev, struct device_node *endpoint,
 
        len = clcdfb_snprintf_mode(NULL, 0, mode);
        name = devm_kzalloc(dev, len + 1, GFP_KERNEL);
+       if (!name)
+               return -ENOMEM;
+
        clcdfb_snprintf_mode(name, len + 1, mode);
        mode->name = name;