From af3ed78ecbf367008ae4852cd676a75ce71db35f Mon Sep 17 00:00:00 2001 From: Daniel Scally Date: Wed, 2 Mar 2022 22:03:00 +0000 Subject: 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: Laurent Pinchart Signed-off-by: Daniel Scally Reviewed-by: Jean-Michel Hautbois Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/mc/mc-entity.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/media/mc/mc-entity.c b/drivers/media/mc/mc-entity.c index 20f5a76bd78b..379898ca704c 100644 --- a/drivers/media/mc/mc-entity.c +++ b/drivers/media/mc/mc-entity.c @@ -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; -- cgit v1.2.3