diff options
| author | Hans Verkuil | 2013-03-19 04:09:26 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2013-03-24 06:25:34 -0300 |
| commit | b530a447bb588fdf43fdf4eb909e4ee1921d47ac (patch) | |
| tree | 8c9f6abb0f0c07ceea984a87fd80e9e65e7d483b /drivers/media/pci/bt8xx/bttv-driver.c | |
| parent | 69aa6f4ec669b9121057cc9e32cb10b5f744f6d6 (diff) | |
[media] v4l2: add const to argument of write-only s_frequency ioctl
This ioctl is defined as IOW, so pass the argument as const.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-driver.c')
| -rw-r--r-- | drivers/media/pci/bt8xx/bttv-driver.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c index 2fb2168f74e2..3156daf2c804 100644 --- a/drivers/media/pci/bt8xx/bttv-driver.c +++ b/drivers/media/pci/bt8xx/bttv-driver.c @@ -1852,24 +1852,26 @@ static int bttv_g_frequency(struct file *file, void *priv, return 0; } -static void bttv_set_frequency(struct bttv *btv, struct v4l2_frequency *f) +static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f) { + struct v4l2_frequency new_freq = *f; + bttv_call_all(btv, tuner, s_frequency, f); /* s_frequency may clamp the frequency, so get the actual frequency before assigning radio/tv_freq. */ - bttv_call_all(btv, tuner, g_frequency, f); - if (f->type == V4L2_TUNER_RADIO) { + bttv_call_all(btv, tuner, g_frequency, &new_freq); + if (new_freq.type == V4L2_TUNER_RADIO) { radio_enable(btv); - btv->radio_freq = f->frequency; + btv->radio_freq = new_freq.frequency; if (btv->has_matchbox) tea5757_set_freq(btv, btv->radio_freq); } else { - btv->tv_freq = f->frequency; + btv->tv_freq = new_freq.frequency; } } static int bttv_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) + const struct v4l2_frequency *f) { struct bttv_fh *fh = priv; struct bttv *btv = fh->btv; |