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

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

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
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>

2 files changed, 2 insertions, 2 deletions

diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index ee7b7c67c87a..a4175cda4fc1 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -242,7 +242,7 @@ struct v4l2_ioctl_ops {
         int (*vidioc_g_register)       (struct file *file, void *fh,
                                         struct v4l2_dbg_register *reg);
         int (*vidioc_s_register)       (struct file *file, void *fh,
-                                        struct v4l2_dbg_register *reg);
+                                        const struct v4l2_dbg_register *reg);
 #endif
         int (*vidioc_g_chip_ident)     (struct file *file, void *fh,
                                         struct v4l2_dbg_chip_ident *chip);
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 79784fc8f9e9..8158a0810fdc 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -165,7 +165,7 @@ struct v4l2_subdev_core_ops {
         long (*ioctl)(struct v4l2_subdev *sd, unsigned int cmd, void *arg);
 #ifdef CONFIG_VIDEO_ADV_DEBUG
         int (*g_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg);
-        int (*s_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg);
+        int (*s_register)(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg);
 #endif
         int (*s_power)(struct v4l2_subdev *sd, int on);
         int (*interrupt_service_routine)(struct v4l2_subdev *sd,