diff options
| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2013-05-09 08:29:33 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-06-19 09:00:45 -0300 |
| commit | c2efd3e6e04942aa8206ca26c855eabf67cfdbc0 (patch) | |
| tree | 78ce9c1b5fbf104c22a2b4f1fa1474c0e5c97cc3 /drivers/media/v4l2-core/v4l2-device.c | |
| parent | 7349cec14d63251d093a213f7d40ed3c732b3734 (diff) | |
[media] V4L: Remove all links of the media entity when unregistering subdev
Remove all links of the subdev's media entity after internal_ops
'unregistered' call and right before unregistering the entity from
a media device.
It is assumed here that an unregistered (orphan) media entity cannot
have links to other entities registered to a media device.
It is also assumed the media links should be created/removed with
the media graph's mutex held.
The above implies that the caller of v4l2_device_unregister_subdev()
must not hold the graph's mutex.
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-device.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-device.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c index 8ed5da2170bf..2dbfebc0ca85 100644 --- a/drivers/media/v4l2-core/v4l2-device.c +++ b/drivers/media/v4l2-core/v4l2-device.c @@ -269,8 +269,10 @@ void v4l2_device_unregister_subdev(struct v4l2_subdev *sd) sd->v4l2_dev = NULL; #if defined(CONFIG_MEDIA_CONTROLLER) - if (v4l2_dev->mdev) + if (v4l2_dev->mdev) { + media_entity_remove_links(&sd->entity); media_device_unregister_entity(&sd->entity); + } #endif video_unregister_device(sd->devnode); module_put(sd->owner); |