Warn if a lens or a flash async sub-device is bound to a non-sub-device
notifier. This isn't meaningful and unlikely to happen in practice but
print a warning as we nevertheless won't consider this an error.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-async.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index c477723c07bf..81a9b5473969 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -323,8 +323,12 @@ static int v4l2_async_create_ancillary_links(struct v4l2_async_notifier *n,
sd->entity.function != MEDIA_ENT_F_FLASH)
return 0;
- if (!n->sd)
+ if (!n->sd) {
+ dev_warn(notifier_dev(n),
+ "not a sub-device notifier, not creating an ancillary link for %s!\n",
+ dev_name(sd->dev));
return 0;
+ }
link = media_create_ancillary_link(&n->sd->entity, &sd->entity);
--
2.39.2
