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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2009-02-14 19:58:33 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-02-17 09:43:09 -0300 |
| commit | ac9575f75c52bcb455120f8c43376b556acba048 (patch) | |
| tree | d7c4699dfa9b97b2a189643043886fe0fe180212 /drivers/media | |
| parent | ad28127d7c7c617bca1d426f95b6ffa1fb8f700f (diff) | |
| download | linux-stable-ac9575f75c52bcb455120f8c43376b556acba048.tar.gz linux-stable-ac9575f75c52bcb455120f8c43376b556acba048.tar.bz2 linux-stable-ac9575f75c52bcb455120f8c43376b556acba048.zip | |
V4L/DVB (10625): ivtv: fix decoder crash regression
The video_ioctl2 conversion of ivtv in kernel 2.6.27 introduced a bug
causing decoder commands to crash. The decoder commands should have been
handled from the video_ioctl2 default handler, ensuring correct mapping
of the argument between user and kernel space. Unfortunately they ended
up before the video_ioctl2 call, causing random crashes.
Thanks to hannes@linus.priv.at for testing and helping me track down the
cause!
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-ioctl.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c index f6b3ef6e691b..9be6244573e9 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/drivers/media/video/ivtv/ivtv-ioctl.c @@ -1748,6 +1748,18 @@ static long ivtv_default(struct file *file, void *fh, int cmd, void *arg) break; } + case IVTV_IOC_DMA_FRAME: + case VIDEO_GET_PTS: + case VIDEO_GET_FRAME_COUNT: + case VIDEO_GET_EVENT: + case VIDEO_PLAY: + case VIDEO_STOP: + case VIDEO_FREEZE: + case VIDEO_CONTINUE: + case VIDEO_COMMAND: + case VIDEO_TRY_COMMAND: + return ivtv_decoder_ioctls(file, cmd, (void *)arg); + default: return -EINVAL; } @@ -1790,18 +1802,6 @@ static long ivtv_serialized_ioctl(struct ivtv *itv, struct file *filp, ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); return 0; - case IVTV_IOC_DMA_FRAME: - case VIDEO_GET_PTS: - case VIDEO_GET_FRAME_COUNT: - case VIDEO_GET_EVENT: - case VIDEO_PLAY: - case VIDEO_STOP: - case VIDEO_FREEZE: - case VIDEO_CONTINUE: - case VIDEO_COMMAND: - case VIDEO_TRY_COMMAND: - return ivtv_decoder_ioctls(filp, cmd, (void *)arg); - default: break; } |