Commit af3ed78e authored by Daniel Scally's avatar Daniel Scally Committed by Mauro Carvalho Chehab
Browse files

media: entity: Skip non-data links in graph iteration 



When iterating over the media graph, don't follow links that are not
data links.

Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarDaniel Scally <djrscally@gmail.com>
Reviewed-by: default avatarJean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@kernel.org>
parent 6008dea1

drivers/media/mc/mc-entity.c

+6 −0
Original line number Diff line number Diff line
@@ -295,6 +295,12 @@ static void media_graph_walk_iter(struct media_graph *graph) 


	link = list_entry(link_top(graph), typeof(*link), list);



	/* If the link is not a data link, don't follow it */

	if ((link->flags & MEDIA_LNK_FL_LINK_TYPE) != MEDIA_LNK_FL_DATA_LINK) {

		link_top(graph) = link_top(graph)->next;

		return;

	}



	/* The link is not enabled so we do not follow. */

	if (!(link->flags & MEDIA_LNK_FL_ENABLED)) {

		link_top(graph) = link_top(graph)->next;