[media] media-entity: unregister entity links

Add functions to explicitly unregister all entity links.
This function is called automatically when an entity
link is destroyed.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/include/media/media-entity.h b/include/media/media-entity.h
index f905860..0753f30 100644
--- a/include/media/media-entity.h
+++ b/include/media/media-entity.h
@@ -326,6 +326,9 @@
 					    struct media_interface *intf,
 					    u32 flags);
 void media_remove_intf_link(struct media_link *link);
+void __media_remove_intf_links(struct media_interface *intf);
+void media_remove_intf_links(struct media_interface *intf);
+
 
 #define media_entity_call(entity, operation, args...)			\
 	(((entity)->ops && (entity)->ops->operation) ?			\