[media] v4l2: add const to argument of write-only s_frequency ioctl

[deliverable/linux.git] / drivers / media / usb / tlg2300 / pd-video.c

diff --git a/drivers/media/usb/tlg2300/pd-video.c b/drivers/media/usb/tlg2300/pd-video.c
index dab0ca32d396123fb5d57db239f2136385be98f9..8ef7c8c419f7af2bc0f9bb632c388a39650a39a9 100644 (file)
--- 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,