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| author | Kamil Debski <k.debski@samsung.com> | 2015-03-03 11:32:58 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-03-04 08:59:58 -0300 |
| commit | 41f03a00536ebb3d72c051f9e7efe2d4ab76ebc8 (patch) | |
| tree | 43c858bdff9dc777739c6dff451f6e79f612f6d5 | |
| parent | f7cbd688f039a3adefc9210226b7edf5bd8fd6cd (diff) | |
| download | op-kernel-dev-41f03a00536ebb3d72c051f9e7efe2d4ab76ebc8.zip op-kernel-dev-41f03a00536ebb3d72c051f9e7efe2d4ab76ebc8.tar.gz | |
[media] s5p-mfc: Fix NULL pointer dereference caused by not set q->lock
The patch "media: s5p-mfc: use vb2_ops_wait_prepare/finish helper"
(654a731be1a0b6f606f3f3d12b50db08f2ae3c3) introduced a kernel panic.
The q->lock was set for just one queue, the other was not set thus causing
a NULL pointer dereference.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| -rw-r--r-- | drivers/media/platform/s5p-mfc/s5p_mfc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 8e44a59..98374e8 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -833,6 +833,7 @@ static int s5p_mfc_open(struct file *file) q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; q->io_modes = VB2_MMAP; q->drv_priv = &ctx->fh; + q->lock = &dev->mfc_mutex; if (vdev == dev->vfd_dec) { q->io_modes = VB2_MMAP; q->ops = get_dec_queue_ops(); |
