[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>

7 files changed, 9 insertions, 7 deletions

diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
index 96f6a4922d0..0e55b087076 100644
--- a/drivers/media/platform/blackfin/bfin_capture.c
+++ b/drivers/media/platform/blackfin/bfin_capture.c
@@ -890,7 +890,7 @@ static int bcap_dbg_g_register(struct file *file, void *priv,
 }
 
 static int bcap_dbg_s_register(struct file *file, void *priv,
-		struct v4l2_dbg_register *reg)
+		const struct v4l2_dbg_register *reg)
 {
 	struct bcap_device *bcap_dev = video_drvdata(file);
 
diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c
index bcf0ada3481..1802f11e939 100644
--- a/drivers/media/platform/davinci/vpbe_display.c
+++ b/drivers/media/platform/davinci/vpbe_display.c
@@ -1597,7 +1597,7 @@ static int vpbe_display_g_register(struct file *file, void *priv,
 }
 
 static int vpbe_display_s_register(struct file *file, void *priv,
-			struct v4l2_dbg_register *reg)
+			const struct v4l2_dbg_register *reg)
 {
 	return 0;
 }
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 00b7f9c5ac0..5f98df1fc8a 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1924,7 +1924,8 @@ static int vpif_dbg_g_register(struct file *file, void *priv,
  * Returns zero or -EINVAL if write operations fails.
  */
 static int vpif_dbg_s_register(struct file *file, void *priv,
-		struct v4l2_dbg_register *reg){
+		const struct v4l2_dbg_register *reg)
+{
 	struct vpif_fh *fh = priv;
 	struct channel_obj *ch = fh->channel;
 
diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c
index f1dff9ec1ea..1b3fb5ca2ad 100644
--- a/drivers/media/platform/davinci/vpif_display.c
+++ b/drivers/media/platform/davinci/vpif_display.c
@@ -1568,7 +1568,8 @@ static int vpif_dbg_g_register(struct file *file, void *priv,
  * Returns zero or -EINVAL if write operations fails.
  */
 static int vpif_dbg_s_register(struct file *file, void *priv,
-		struct v4l2_dbg_register *reg){
+		const struct v4l2_dbg_register *reg)
+{
 	struct vpif_fh *fh = priv;
 	struct channel_obj *ch = fh->channel;
 
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 76a862318a7..64ab91edfb8 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -1445,7 +1445,7 @@ static int mcam_vidioc_g_register(struct file *file, void *priv,
 }
 
 static int mcam_vidioc_s_register(struct file *file, void *priv,
-		struct v4l2_dbg_register *reg)
+		const struct v4l2_dbg_register *reg)
 {
 	struct mcam_camera *cam = priv;
 
diff --git a/drivers/media/platform/sh_vou.c b/drivers/media/platform/sh_vou.c
index 8e3b95a6c29..7d0235069c8 100644
--- a/drivers/media/platform/sh_vou.c
+++ b/drivers/media/platform/sh_vou.c
@@ -1266,7 +1266,7 @@ static int sh_vou_g_register(struct file *file, void *fh,
 }
 
 static int sh_vou_s_register(struct file *file, void *fh,
-				 struct v4l2_dbg_register *reg)
+				 const struct v4l2_dbg_register *reg)
 {
 	struct sh_vou_device *vou_dev = video_drvdata(file);
 
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 3592968026c..bf55abfb7cb 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -1042,7 +1042,7 @@ static int soc_camera_g_register(struct file *file, void *fh,
 }
 
 static int soc_camera_s_register(struct file *file, void *fh,
-				 struct v4l2_dbg_register *reg)
+				 const struct v4l2_dbg_register *reg)
 {
 	struct soc_camera_device *icd = file->private_data;
 	struct v4l2_subdev *sd = soc_camera_to_subdev(icd);