diff options
| author | Ezequiel Garcia <elezegarcia@gmail.com> | 2012-09-17 14:59:30 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-27 06:09:10 -0300 |
| commit | 896f38f582730a19eb49677105b4fe4c0270b82e (patch) | |
| tree | 70b769ece5f928d4b5e5cfe2f586f3882fb2acf2 | |
| parent | 4195ec7a8fa253cb7e598a8f99f005bc97d4ac15 (diff) | |
[media] videobuf2-core: Replace BUG_ON and return an error at vb2_queue_init()
This replaces BUG_ON() calls with WARN_ON(), and returns
EINVAL if some parameter is NULL, as suggested by Jonathan and Mauro.
The BUG_ON() call is too drastic to be used in this case.
See the full discussion here:
http://www.spinics.net/lists/linux-media/msg52462.html
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/v4l2-core/videobuf2-core.c | 19 | ||||
| -rw-r--r-- | include/media/videobuf2-core.h | 2 |
2 files changed, 12 insertions, 9 deletions
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c index 59ed5223393..e6a26b433e8 100644 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@ -1738,14 +1738,17 @@ EXPORT_SYMBOL_GPL(vb2_poll); */ int vb2_queue_init(struct vb2_queue *q) { - BUG_ON(!q); - BUG_ON(!q->ops); - BUG_ON(!q->mem_ops); - BUG_ON(!q->type); - BUG_ON(!q->io_modes); - - BUG_ON(!q->ops->queue_setup); - BUG_ON(!q->ops->buf_queue); + /* + * Sanity check + */ + if (WARN_ON(!q) || + WARN_ON(!q->ops) || + WARN_ON(!q->mem_ops) || + WARN_ON(!q->type) || + WARN_ON(!q->io_modes) || + WARN_ON(!q->ops->queue_setup) || + WARN_ON(!q->ops->buf_queue)) + return -EINVAL; INIT_LIST_HEAD(&q->queued_list); INIT_LIST_HEAD(&q->done_list); diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 8dd9b6cc296..e04252a9fea 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -324,7 +324,7 @@ int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req); int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create); int vb2_prepare_buf(struct vb2_queue *q, struct v4l2_buffer *b); -int vb2_queue_init(struct vb2_queue *q); +int __must_check vb2_queue_init(struct vb2_queue *q); void vb2_queue_release(struct vb2_queue *q); |