When using DMABUF streaming in non-planar mode, the v4l2_buffer::length field holds the length of the buffer as required by userspace. Copy it to the length of the first plane at QBUF time, as the plane length is later checked against the dma-buf size.

Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com --- drivers/media/video/videobuf2-core.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/media/video/videobuf2-core.c b/drivers/media/video/videobuf2-core.c index 29cf6ed..8eb4d08 100644 --- a/drivers/media/video/videobuf2-core.c +++ b/drivers/media/video/videobuf2-core.c @@ -927,6 +927,7 @@ static int __fill_vb2_buffer(struct vb2_buffer *vb, const struct v4l2_buffer *b, } if (b->memory == V4L2_MEMORY_DMABUF) { v4l2_planes[0].m.fd = b->m.fd; + v4l2_planes[0].length = b->length; }

}