diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-mem2mem.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-mem2mem.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c index dc853e57f91f..af8d6b4aa807 100644 --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@ -357,9 +357,16 @@ int v4l2_m2m_reqbufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx, struct v4l2_requestbuffers *reqbufs) { struct vb2_queue *vq; + int ret; vq = v4l2_m2m_get_vq(m2m_ctx, reqbufs->type); - return vb2_reqbufs(vq, reqbufs); + ret = vb2_reqbufs(vq, reqbufs); + /* If count == 0, then the owner has released all buffers and he + is no longer owner of the queue. Otherwise we have an owner. */ + if (ret == 0) + vq->owner = reqbufs->count ? file->private_data : NULL; + + return ret; } EXPORT_SYMBOL_GPL(v4l2_m2m_reqbufs); |