Link validation currently accesses invalid pointers if the link passed to
it is not between two sub-devices. This is of course a driver bug.
Ignore the error but print a warning message, as this is how it used to
work previously.
Fixes:
a6b995ed03ff ("media: subdev: use streams in v4l2_subdev_link_validate()")
Reported-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
bool states_locked;
int ret;
+ if (!is_media_entity_v4l2_subdev(link->sink->entity) ||
+ !is_media_entity_v4l2_subdev(link->source->entity)) {
+ pr_warn_once("%s of link '%s':%u->'%s':%u is not a V4L2 sub-device, driver bug!\n",
+ !is_media_entity_v4l2_subdev(link->sink->entity) ?
+ "sink" : "source",
+ link->source->entity->name, link->source->index,
+ link->sink->entity->name, link->sink->index);
+ return 0;
+ }
+
sink_sd = media_entity_to_v4l2_subdev(link->sink->entity);
source_sd = media_entity_to_v4l2_subdev(link->source->entity);