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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2012-09-04 12:03:49 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-26 10:56:23 -0300 |
| commit | ba9425bce9e162eee0741d9a94e0d6f68e0242ab (patch) | |
| tree | 68a767a4c9427b040827dd2c1dd908dca040605c | |
| parent | 0e8025b9f6011a6bd69d01080d584bc95a89d02e (diff) | |
| download | linux-3.10-ba9425bce9e162eee0741d9a94e0d6f68e0242ab.tar.gz linux-3.10-ba9425bce9e162eee0741d9a94e0d6f68e0242ab.tar.bz2 linux-3.10-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>
| -rw-r--r-- | drivers/media/pci/ivtv/ivtv-ioctl.c | 6 | ||||
| -rw-r--r-- | drivers/media/radio/radio-si4713.c | 2 | ||||
| -rw-r--r-- | include/media/v4l2-ioctl.h | 2 |
3 files changed, 6 insertions, 4 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.c b/drivers/media/pci/ivtv/ivtv-ioctl.c index 99e35dd3d83..d5cbb617775 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) diff --git a/drivers/media/radio/radio-si4713.c b/drivers/media/radio/radio-si4713.c index 5f366d16be2..1e04101485a 100644 --- a/drivers/media/radio/radio-si4713.c +++ b/drivers/media/radio/radio-si4713.c @@ -83,7 +83,7 @@ static int radio_si4713_g_audout(struct file *file, void *priv, } static int radio_si4713_s_audout(struct file *file, void *priv, - struct v4l2_audioout *vao) + const struct v4l2_audioout *vao) { return vao->index ? -EINVAL : 0; } diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h index babbe09527c..d4c7729e8ec 100644 --- a/include/media/v4l2-ioctl.h +++ b/include/media/v4l2-ioctl.h @@ -175,7 +175,7 @@ struct v4l2_ioctl_ops { int (*vidioc_g_audout) (struct file *file, void *fh, struct v4l2_audioout *a); int (*vidioc_s_audout) (struct file *file, void *fh, - struct v4l2_audioout *a); + const struct v4l2_audioout *a); int (*vidioc_g_modulator) (struct file *file, void *fh, struct v4l2_modulator *a); int (*vidioc_s_modulator) (struct file *file, void *fh, |