[media] v4l2: pass std by value to the write-only s_std ioctl

This ioctl is defined as IOW, so pass the argument by value instead of by
reference. I could have chosen to add const instead, but this is 1) easier
to handle in drivers and 2) consistent with the s_std subdev operation.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 0da8682a0481..ee7b7c67c87a 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -132,7 +132,7 @@ struct v4l2_ioctl_ops {
                         ENUMSTD is handled by videodev.c
                  */
         int (*vidioc_g_std) (struct file *file, void *fh, v4l2_std_id *norm);
-        int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id *norm);
+        int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id norm);
         int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a);
 
                 /* Input handling */