Message ID | 1406730195-64365-2-git-send-email-hverkuil@xs4all.nl (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c index c359006..0e3d927 100644 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@ -2959,6 +2959,12 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_ buf->queued = 0; buf->size = read ? vb2_get_plane_payload(q->bufs[index], 0) : vb2_plane_size(q->bufs[index], 0); + /* Compensate for data_offset on read in the multiplanar case. */ + if (is_multiplanar && read && + fileio->b.m.planes[0].data_offset < buf->size) { + buf->pos = fileio->b.m.planes[0].data_offset; + buf->size -= buf->pos; + } } else { buf = &fileio->bufs[index]; }