[v8,20/55,media] media: make add link more generic
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Message ID 1d94e71434a16c7dcb24d9df592ad6b2d72a4895.1441540862.git.mchehab@osg.samsung.com
State New
Headers show

Commit Message

Mauro Carvalho Chehab Sept. 6, 2015, 12:02 p.m. UTC
The media_entity_add_link() function takes an entity
as an argument just to get the list head.

Make it more generic by changing the function argument
to list_head.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>

Patch
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diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c
index d5efa0e2c88c..625b505e8496 100644
--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -580,7 +580,7 @@  EXPORT_SYMBOL_GPL(media_entity_put);
  * Links management
  */
 
-static struct media_link *media_entity_add_link(struct media_entity *entity)
+static struct media_link *media_add_link(struct list_head *head)
 {
 	struct media_link *link;
 
@@ -588,7 +588,7 @@  static struct media_link *media_entity_add_link(struct media_entity *entity)
 	if (link == NULL)
 		return NULL;
 
-	list_add_tail(&link->list, &entity->links);
+	list_add_tail(&link->list, head);
 
 	return link;
 }
@@ -607,7 +607,7 @@  media_create_pad_link(struct media_entity *source, u16 source_pad,
 	BUG_ON(source_pad >= source->num_pads);
 	BUG_ON(sink_pad >= sink->num_pads);
 
-	link = media_entity_add_link(source);
+	link = media_add_link(&source->links);
 	if (link == NULL)
 		return -ENOMEM;
 
@@ -622,7 +622,7 @@  media_create_pad_link(struct media_entity *source, u16 source_pad,
 	/* Create the backlink. Backlinks are used to help graph traversal and
 	 * are not reported to userspace.
 	 */
-	backlink = media_entity_add_link(sink);
+	backlink = media_add_link(&sink->links);
 	if (backlink == NULL) {
 		__media_entity_remove_link(source, link);
 		return -ENOMEM;