[media] v4l2: make vidioc_s_audio const

Write-only ioctls should have a const argument in the ioctl op.
Do this conversion for vidioc_s_audio.
Adding const for write-only ioctls was decided during the 2012 Media Workshop.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
index fa0fa9ae91c7..870585570571 100644
--- a/drivers/media/usb/au0828/au0828-video.c
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -1465,7 +1465,7 @@ static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
         return 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
+static int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *a)
 {
         struct au0828_fh *fh = priv;
         struct au0828_dev *dev = fh->dev;