6.12-stable review patch. If anyone has any objections, please let me know.
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From: Laurent Pinchart laurent.pinchart@ideasonboard.com
commit eec81250219a209b863f11d02128ec1dd8e20877 upstream.
Commit b3decc5ce7d7 ("media: mc: Expand MUST_CONNECT flag to always require an enabled link") expanded the meaning of the MUST_CONNECT flag to require an enabled link in all cases. To do so, the link exploration code was expanded to cover unconnected pads, in order to reject those that have the MUST_CONNECT flag set. The implementation was however incorrect, ignoring unconnected pads instead of ignoring connected pads. Fix it.
Reported-by: Martin Kepplinger-Novaković martink@posteo.de Closes: https://lore.kernel.org/linux-media/20250205172957.182362-1-martink@posteo.d... Reported-by: Maud Spierings maudspierings@gocontroll.com Closes: https://lore.kernel.org/linux-media/20250818-imx8_isi-v1-1-e9cfe994c435@goco... Fixes: b3decc5ce7d7 ("media: mc: Expand MUST_CONNECT flag to always require an enabled link") Cc: stable@vger.kernel.org # 6.1 Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Tested-by: Maud Spierings maudspierings@gocontroll.com Tested-by: Martin Kepplinger-Novaković martink@posteo.de Signed-off-by: Sakari Ailus sakari.ailus@linux.intel.com Signed-off-by: Hans Verkuil hverkuil+cisco@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/media/mc/mc-entity.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/media/mc/mc-entity.c +++ b/drivers/media/mc/mc-entity.c @@ -691,7 +691,7 @@ done: * (already discovered through iterating over links) and pads * not internally connected. */ - if (origin == local || !local->num_links || + if (origin == local || local->num_links || !media_entity_has_pad_interdep(origin->entity, origin->index, local->index)) continue;