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| author | Ezequiel Garcia <ezequiel@collabora.com> | 2021-05-05 14:23:45 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-06-02 13:05:15 +0200 |
| commit | ba1ed4ae760a81caf39f54232e089d95157a0dba (patch) | |
| tree | 2e179e86ec1ee3b54844f61bb3b7e71389722ec3 /lib/test_user_copy.c | |
| parent | ac5688637144644f06ed1f3c6d4dd8bb7db96020 (diff) | |
media: rkvdec: Fix .buf_prepare
The driver should only set the payload on .buf_prepare if the
buffer is CAPTURE type. If an OUTPUT buffer has a zero bytesused
set by userspace then v4l2-core will set it to buffer length.
If we overwrite bytesused for OUTPUT buffers, too, then
vb2_get_plane_payload() will return incorrect value which might be then
written to hw registers by the driver in rkvdec-h264.c.
[Changed the comment and used V4L2_TYPE_IS_CAPTURE macro]
Fixes: cd33c830448ba ("media: rkvdec: Add the rkvdec driver")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'lib/test_user_copy.c')
0 files changed, 0 insertions, 0 deletions