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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/pci/cx88
parent69aa6f4ec669b9121057cc9e32cb10b5f744f6d6 (diff)
downloadvexpress-lsk-b530a447bb588fdf43fdf4eb909e4ee1921d47ac.tar.gz
[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/cx88')
-rw-r--r--drivers/media/pci/cx88/cx88-blackbird.c2
-rw-r--r--drivers/media/pci/cx88/cx88-video.c10
-rw-r--r--drivers/media/pci/cx88/cx88.h2
3 files changed, 8 insertions, 6 deletions
diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c
index a6ff8a6f4fc..82aa11f526f 100644
--- a/drivers/media/pci/cx88/cx88-blackbird.c
+++ b/drivers/media/pci/cx88/cx88-blackbird.c
@@ -815,7 +815,7 @@ static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
}
static int vidioc_s_frequency (struct file *file, void *priv,
- struct v4l2_frequency *f)
+ const struct v4l2_frequency *f)
{
struct cx8802_fh *fh = priv;
struct cx8802_dev *dev = fh->dev;
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index bc78354262a..4f10875295e 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1321,8 +1321,10 @@ static int vidioc_g_frequency (struct file *file, void *priv,
}
int cx88_set_freq (struct cx88_core *core,
- struct v4l2_frequency *f)
+ const struct v4l2_frequency *f)
{
+ struct v4l2_frequency new_freq = *f;
+
if (unlikely(UNSET == core->board.tuner_type))
return -EINVAL;
if (unlikely(f->tuner != 0))
@@ -1331,8 +1333,8 @@ int cx88_set_freq (struct cx88_core *core,
mutex_lock(&core->lock);
cx88_newstation(core);
call_all(core, tuner, s_frequency, f);
- call_all(core, tuner, g_frequency, f);
- core->freq = f->frequency;
+ call_all(core, tuner, g_frequency, &new_freq);
+ core->freq = new_freq.frequency;
/* When changing channels it is required to reset TVAUDIO */
msleep (10);
@@ -1345,7 +1347,7 @@ int cx88_set_freq (struct cx88_core *core,
EXPORT_SYMBOL(cx88_set_freq);
static int vidioc_s_frequency (struct file *file, void *priv,
- struct v4l2_frequency *f)
+ const struct v4l2_frequency *f)
{
struct cx8800_fh *fh = priv;
struct cx88_core *core = fh->dev->core;
diff --git a/drivers/media/pci/cx88/cx88.h b/drivers/media/pci/cx88/cx88.h
index feff53c0a25..eca02c2435d 100644
--- a/drivers/media/pci/cx88/cx88.h
+++ b/drivers/media/pci/cx88/cx88.h
@@ -740,7 +740,7 @@ void cx8802_cancel_buffers(struct cx8802_dev *dev);
/* ----------------------------------------------------------- */
/* cx88-video.c*/
int cx88_enum_input (struct cx88_core *core,struct v4l2_input *i);
-int cx88_set_freq (struct cx88_core *core,struct v4l2_frequency *f);
+int cx88_set_freq(struct cx88_core *core, const struct v4l2_frequency *f);
int cx88_video_mux(struct cx88_core *core, unsigned int input);
void cx88_querycap(struct file *file, struct cx88_core *core,
struct v4l2_capability *cap);