media: platform: remove redundant null pointer check before of_node_put

of_node_put has taken the null pinter check into account. So it is
safe to remove the duplicated check before of_node_put.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/ti-vpe/cal.c

@@ -1747,13 +1747,9 @@ static int of_cal_create_instance(struct cal_ctx *ctx, int inst)
 	}
 
 cleanup_exit:
-	if (remote_ep)
 	of_node_put(remote_ep);
-	if (sensor_node)
 	of_node_put(sensor_node);
-	if (ep_node)
 	of_node_put(ep_node);
-	if (port)
 	of_node_put(port);
 
 	return ret;