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

This ioctl is defined as IOW, so pass the argument as const.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 3 insertions, 8 deletions

diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c
index 82aa11f526f0..486ca8d5f2a0 100644
--- a/drivers/media/pci/cx88/cx88-blackbird.c
+++ b/drivers/media/pci/cx88/cx88-blackbird.c
@@ -918,7 +918,7 @@ static int vidioc_g_tuner (struct file *file, void *priv,
 }
 
 static int vidioc_s_tuner (struct file *file, void *priv,
-                                struct v4l2_tuner *t)
+                                const struct v4l2_tuner *t)
 {
         struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
 
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 4f10875295e8..ede6f139b5cc 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1289,7 +1289,7 @@ static int vidioc_g_tuner (struct file *file, void *priv,
 }
 
 static int vidioc_s_tuner (struct file *file, void *priv,
-                                struct v4l2_tuner *t)
+                                const struct v4l2_tuner *t)
 {
         struct cx88_core  *core = ((struct cx8800_fh *)priv)->dev->core;
 
@@ -1409,20 +1409,15 @@ static int radio_g_tuner (struct file *file, void *priv,
         return 0;
 }
 
-/* FIXME: Should add a standard for radio */
-
 static int radio_s_tuner (struct file *file, void *priv,
-                                struct v4l2_tuner *t)
+                                const struct v4l2_tuner *t)
 {
         struct cx88_core  *core = ((struct cx8800_fh *)priv)->dev->core;
 
         if (0 != t->index)
                 return -EINVAL;
-        if (t->audmode > V4L2_TUNER_MODE_STEREO)
-                t->audmode = V4L2_TUNER_MODE_STEREO;
 
         call_all(core, tuner, s_tuner, t);
-
         return 0;
 }