p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

media: videobuf2-v4l2: drop WARN_ON in vb2_warn_zero_bytesused() 

Userspace shouldn't set bytesused to 0 for output buffers.
vb2_warn_zero_bytesused() warns about this (only once!), but it also
calls WARN_ON(1), which is confusing since it is not immediately clear
that it warns about a 0 value for bytesused.

Just drop the WARN_ON as it serves no purpose.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2018-11-19 10:33:44 -05:00 committed by Mauro Carvalho Chehab
parent d644cca50f
commit 5e99456c20
1 changed files with 0 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/media/common/videobuf2/videobuf2-v4l2.c
View File

@ -158,7 +158,6 @@ static void vb2_warn_zero_bytesused(struct vb2_buffer *vb)
return;
check_once = true;
WARN_ON(1);
pr_warn("use of bytesused == 0 is deprecated and will be removed in the future,\n");
if (vb->vb2_queue->allow_zero_bytesused)