[PATCH v9 17/36] media: entity: Skip link validation for pads to which there is no route

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From: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>

Links are validated along the pipeline which is about to start streaming.
Not all the pads in entities that are traversed along that pipeline are
part of the pipeline, however. Skip the link validation for such pads.

Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
 drivers/media/mc/mc-entity.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/media/mc/mc-entity.c b/drivers/media/mc/mc-entity.c
index 58cdc9c6b342..e963850b32df 100644
--- a/drivers/media/mc/mc-entity.c
+++ b/drivers/media/mc/mc-entity.c
@@ -489,6 +489,11 @@ __must_check int __media_pipeline_start(struct media_pad *pad,
 				link->sink->entity == entity ?
 				link->sink : link->source;
 
+			/* Ignore pads to which there is no route. */
+			if (!media_entity_has_route(entity, pad->index,
+						    other_pad->index))
+				continue;
+
 			/* Mark that a pad is connected by a link. */
 			bitmap_clear(has_no_links, other_pad->index, 1);
 
-- 
2.25.1




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