[media] v4l2-ctrls/v4l2-events: small coding style cleanups

Thanks to Laurent Pinchart <laurent.pinchart@ideasonboard.com>.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c
index cc2b589..a037739 100644
--- a/drivers/media/video/v4l2-ctrls.c
+++ b/drivers/media/video/v4l2-ctrls.c
@@ -586,7 +586,7 @@
 	struct v4l2_subscribed_event *sev;
 
 	if (list_empty(&ctrl->ev_subs))
-			return;
+		return;
 	fill_event(&ev, ctrl, changes);
 
 	list_for_each_entry(sev, &ctrl->ev_subs, node)