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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2010-04-06 08:12:21 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-19 12:57:06 -0300 |
| commit | 1d94aa369da073acff26fa98ad6b2168cb028ab1 (patch) | |
| tree | c5b097743f3c9292fe39a8d1d4321e8337bbc312 /drivers | |
| parent | ea64f8c2204cd8b9a95072c7ef85cc9a120a2693 (diff) | |
| download | linux-stable-1d94aa369da073acff26fa98ad6b2168cb028ab1.tar.gz linux-stable-1d94aa369da073acff26fa98ad6b2168cb028ab1.tar.bz2 linux-stable-1d94aa369da073acff26fa98ad6b2168cb028ab1.zip | |
V4L/DVB: video_ioctl2: do not replace arg with NULL for _IO() ioctls
If the ioctl was defined without direction (e.g. _IO('o', 25)), then
the arg as passed to vidioc_default was NULL instead of the original
argument.
Several ioctls in e.g. include/linux/dvb/video.h and audio.h use this type
of ioctl to pass simple numerical values to the driver.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/v4l2-ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index 7d59c107f13b..d6975f9c3722 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -2006,7 +2006,7 @@ long video_ioctl2(struct file *file, { char sbuf[128]; void *mbuf = NULL; - void *parg = NULL; + void *parg = (void *)arg; long err = -EINVAL; int is_ext_ctrl; size_t ctrls_size = 0; |