When iterating over the media graph, don't follow links that are not
data links.
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Daniel Scally <djrscally@xxxxxxxxx>
---
Changes since v1:
- Moved to the head of the series
- s/pad-to-pad/data (Sakari)
- Dropped the debug message (Laurent)
Changes since the rfc:
- new patch
drivers/media/mc/mc-entity.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/media/mc/mc-entity.c b/drivers/media/mc/mc-entity.c
index f40f41977142..2a6e16fb0048 100644
--- a/drivers/media/mc/mc-entity.c
+++ b/drivers/media/mc/mc-entity.c
@@ -313,6 +313,12 @@ 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;
--
2.25.1
