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authorHans Verkuil <hans.verkuil@cisco.com>2013-03-19 04:09:26 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-03-24 06:25:34 -0300
commitb530a447bb588fdf43fdf4eb909e4ee1921d47ac (patch)
tree8c9f6abb0f0c07ceea984a87fd80e9e65e7d483b /drivers/media/usb/cx231xx
parent69aa6f4ec669b9121057cc9e32cb10b5f744f6d6 (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/usb/cx231xx')
-rw-r--r--drivers/media/usb/cx231xx/cx231xx-video.c7
-rw-r--r--drivers/media/usb/cx231xx/cx231xx.h2
2 files changed, 5 insertions, 4 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index ac6200870a6..96f65318d78 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -1172,10 +1172,11 @@ int cx231xx_g_frequency(struct file *file, void *priv,
}
int cx231xx_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f)
+ const struct v4l2_frequency *f)
{
struct cx231xx_fh *fh = priv;
struct cx231xx *dev = fh->dev;
+ struct v4l2_frequency new_freq = *f;
int rc;
u32 if_frequency = 5400000;
@@ -1194,8 +1195,8 @@ int cx231xx_s_frequency(struct file *file, void *priv,
rc = cx231xx_tuner_pre_channel_change(dev);
call_all(dev, tuner, s_frequency, f);
- call_all(dev, tuner, g_frequency, f);
- dev->ctl_freq = f->frequency;
+ call_all(dev, tuner, g_frequency, &new_freq);
+ dev->ctl_freq = new_freq.frequency;
/* set post channel change settings in DIF first */
rc = cx231xx_tuner_post_channel_change(dev);
diff --git a/drivers/media/usb/cx231xx/cx231xx.h b/drivers/media/usb/cx231xx/cx231xx.h
index dff3f1d73f2..6f701e9bec4 100644
--- a/drivers/media/usb/cx231xx/cx231xx.h
+++ b/drivers/media/usb/cx231xx/cx231xx.h
@@ -940,7 +940,7 @@ int cx231xx_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
int cx231xx_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f);
int cx231xx_s_frequency(struct file *file, void *priv,
- struct v4l2_frequency *f);
+ const struct v4l2_frequency *f);
int cx231xx_enum_input(struct file *file, void *priv,
struct v4l2_input *i);
int cx231xx_g_input(struct file *file, void *priv, unsigned int *i);