diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2023-04-25 12:30:45 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-10-07 10:55:48 +0200 |
| commit | deb866f9e3a45ae058b21765feeffae6aea6a193 (patch) | |
| tree | 7d2ce4f6790af39e1a62ae10fe2fa03486033964 /drivers/media/mc | |
| parent | 4c812e33b0de26bc61e2ab5b3c4dd3e4d3c6cd51 (diff) | |
media: mc: Check pad flag validity
Check the validity of pad flags on entity init. Exactly one of the flags
must be set.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'drivers/media/mc')
| -rw-r--r-- | drivers/media/mc/mc-entity.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/media/mc/mc-entity.c b/drivers/media/mc/mc-entity.c index 83468d4a440b..543a392f8635 100644 --- a/drivers/media/mc/mc-entity.c +++ b/drivers/media/mc/mc-entity.c @@ -197,6 +197,7 @@ int media_entity_pads_init(struct media_entity *entity, u16 num_pads, struct media_device *mdev = entity->graph_obj.mdev; struct media_pad *iter; unsigned int i = 0; + int ret = 0; if (num_pads >= MEDIA_ENTITY_MAX_PADS) return -E2BIG; @@ -210,15 +211,27 @@ int media_entity_pads_init(struct media_entity *entity, u16 num_pads, media_entity_for_each_pad(entity, iter) { iter->entity = entity; iter->index = i++; + + if (hweight32(iter->flags & (MEDIA_PAD_FL_SINK | + MEDIA_PAD_FL_SOURCE)) != 1) { + ret = -EINVAL; + break; + } + if (mdev) media_gobj_create(mdev, MEDIA_GRAPH_PAD, &iter->graph_obj); } + if (ret && mdev) { + media_entity_for_each_pad(entity, iter) + media_gobj_destroy(&iter->graph_obj); + } + if (mdev) mutex_unlock(&mdev->graph_mutex); - return 0; + return ret; } EXPORT_SYMBOL_GPL(media_entity_pads_init); |