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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2012-09-04 17:03:49 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-26 15:56:23 +0200 |
| commit | ba9425bce9e162eee0741d9a94e0d6f68e0242ab (patch) | |
| tree | 68a767a4c9427b040827dd2c1dd908dca040605c /drivers/media/pci | |
| parent | [media] v4l2: make vidioc_s_audio const (diff) | |
| download | linux-ba9425bce9e162eee0741d9a94e0d6f68e0242ab.tar.xz linux-ba9425bce9e162eee0741d9a94e0d6f68e0242ab.zip | |
[media] v4l2: make vidioc_s_audout const
Write-only ioctls should have a const argument in the ioctl op.
Do this conversion for vidioc_s_audout.
Adding const for write-only ioctls was decided during the 2012 Media Workshop.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci')
| -rw-r--r-- | drivers/media/pci/ivtv/ivtv-ioctl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.c b/drivers/media/pci/ivtv/ivtv-ioctl.c index 99e35dd3d83e..d5cbb6177754 100644 --- a/drivers/media/pci/ivtv/ivtv-ioctl.c +++ b/drivers/media/pci/ivtv/ivtv-ioctl.c @@ -813,11 +813,13 @@ static int ivtv_g_audout(struct file *file, void *fh, struct v4l2_audioout *vin) return ivtv_get_audio_output(itv, vin->index, vin); } -static int ivtv_s_audout(struct file *file, void *fh, struct v4l2_audioout *vout) +static int ivtv_s_audout(struct file *file, void *fh, const struct v4l2_audioout *vout) { struct ivtv *itv = fh2id(fh)->itv; - return ivtv_get_audio_output(itv, vout->index, vout); + if (itv->card->video_outputs == NULL || vout->index != 0) + return -EINVAL; + return 0; } static int ivtv_enum_input(struct file *file, void *fh, struct v4l2_input *vin) |