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authorDaniel Scally <djrscally@gmail.com>2022-03-02 23:03:00 +0100
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-04-24 08:57:21 +0200
commitaf3ed78ecbf367008ae4852cd676a75ce71db35f (patch)
treefe978791514fa43e42eb2fc3cec7e15f5208dbdd /drivers/media/mc
parentmedia: entity: skip non-data link when removing reverse links (diff)
downloadlinux-af3ed78ecbf367008ae4852cd676a75ce71db35f.tar.xz
linux-af3ed78ecbf367008ae4852cd676a75ce71db35f.zip
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 <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Scally <djrscally@gmail.com> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/mc')
-rw-r--r--drivers/media/mc/mc-entity.c6
1 files changed, 6 insertions, 0 deletions
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;