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 <[e-mail]>
Signed-off-by: Tomi Valkeinen <[e-mail]>

drivers/video/fbdev/amba-clcd.c

···
 
 	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;