[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>
diff --git a/include/media/davinci/vpbe.h b/include/media/davinci/vpbe.h
index a7ca488..57585c7 100644
--- a/include/media/davinci/vpbe.h
+++ b/include/media/davinci/vpbe.h
@@ -132,7 +132,7 @@
 			       struct v4l2_enum_dv_timings *timings_info);
 
 	/* Set std at the output */
-	int (*s_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id);
+	int (*s_std)(struct vpbe_device *vpbe_dev, v4l2_std_id std_id);
 
 	/* Get the current std at the output */
 	int (*g_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id);
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index 0da8682..ee7b7c6 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -132,7 +132,7 @@
 			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 */