[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>

2 files changed, 4 insertions, 3 deletions

diff --git a/drivers/media/usb/tlg2300/pd-radio.c b/drivers/media/usb/tlg2300/pd-radio.c
index 0f958f74dbc4..8b1daf1f1e99 100644
--- a/drivers/media/usb/tlg2300/pd-radio.c
+++ b/drivers/media/usb/tlg2300/pd-radio.c
@@ -252,7 +252,7 @@ error:
 }
 
 static int fm_set_freq(struct file *file, void *priv,
-                       struct v4l2_frequency *argp)
+                       const struct v4l2_frequency *argp)
 {
         struct poseidon *p = video_drvdata(file);
 
diff --git a/drivers/media/usb/tlg2300/pd-video.c b/drivers/media/usb/tlg2300/pd-video.c
index dab0ca32d396..8ef7c8c419f7 100644
--- a/drivers/media/usb/tlg2300/pd-video.c
+++ b/drivers/media/usb/tlg2300/pd-video.c
@@ -1079,10 +1079,11 @@ static int set_frequency(struct poseidon *pd, u32 *frequency)
 }
 
 static int vidioc_s_frequency(struct file *file, void *fh,
-                                struct v4l2_frequency *freq)
+                                const struct v4l2_frequency *freq)
 {
         struct front_face *front = fh;
         struct poseidon *pd = front->pd;
+        u32 frequency = freq->frequency;
 
         if (freq->tuner)
                 return -EINVAL;
@@ -1090,7 +1091,7 @@ static int vidioc_s_frequency(struct file *file, void *fh,
         pd->pm_suspend = pm_video_suspend;
         pd->pm_resume = pm_video_resume;
 #endif
-        return set_frequency(pd, &freq->frequency);
+        return set_frequency(pd, &frequency);
 }
 
 static int vidioc_reqbufs(struct file *file, void *fh,