[media] s5k5baf: Add missing error check for devm_kzalloc

This patch add a missing a 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>
Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/i2c/s5k5baf.c

@@ -374,6 +374,8 @@ static int s5k5baf_fw_parse(struct device *dev, struct s5k5baf_fw **fw,
 	count -= S5K5BAG_FW_TAG_LEN;
 
 	d = devm_kzalloc(dev, count * sizeof(u16), GFP_KERNEL);
+	if (!d)
+		return -ENOMEM;
 
 	for (i = 0; i < count; ++i)
 		d[i] = le16_to_cpu(data[i]);