diff options
| author | Pawel Osciak <p.osciak@samsung.com> | 2010-07-20 13:49:16 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-09-30 07:22:22 -0300 |
| commit | b2b476f53a9d24b00a313adf7f6ca92515a2af54 (patch) | |
| tree | 4510939190c507264aa46623daec039f703f9fbd /mm | |
| parent | a08c7c68f702e2a2797a4035b6c0a756c4886c26 (diff) | |
V4L/DVB: v4l: videobuf: prevent passing a NULL to dma_free_coherent()
When a driver that uses videobuf-dma-contig is used with the USERPTR
memory access method a kernel oops might happen: a NULL address may be
passed to dma_free_coherent(). This happens when an application calls
REQBUFS and then exits without queuing any buffers. This patch fixes
that bug.
Signed-off-by: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions