From 5ed470feb9a121582dbd455c72b133dc1a856a0a Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 6 Apr 2016 10:55:25 -0300 Subject: [media] media: Improve documentation for link_setup/link_modify Those callbacks are called with the media_device.graph_mutex held. Add a note about that, as the code called by those notifiers should not be touching in the mutex. Acked-by: Sakari Ailus Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/media-entity.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/media/media-entity.h') diff --git a/include/media/media-entity.h b/include/media/media-entity.h index e0295eefd702..cbb266f7f2b5 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -179,6 +179,9 @@ struct media_pad { * @link_validate: Return whether a link is valid from the entity point of * view. The media_entity_pipeline_start() function * validates all links by calling this operation. Optional. + * + * Note: Those these callbacks are called with struct media_device.@graph_mutex + * mutex held. */ struct media_entity_operations { int (*link_setup)(struct media_entity *entity, -- cgit v1.2.3