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

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

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

16 files changed, 24 insertions, 26 deletions

diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index 3156daf2c80..7aea24bf3a3 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -1820,7 +1820,7 @@ static int bttv_s_input(struct file *file, void *priv, unsigned int i)
 }
 
 static int bttv_s_tuner(struct file *file, void *priv,
-					struct v4l2_tuner *t)
+					const struct v4l2_tuner *t)
 {
 	struct bttv_fh *fh  = priv;
 	struct bttv *btv = fh->btv;
@@ -1830,8 +1830,11 @@ static int bttv_s_tuner(struct file *file, void *priv,
 
 	bttv_call_all(btv, tuner, s_tuner, t);
 
-	if (btv->audio_mode_gpio)
-		btv->audio_mode_gpio(btv, t, 1);
+	if (btv->audio_mode_gpio) {
+		struct v4l2_tuner copy = *t;
+
+		btv->audio_mode_gpio(btv, &copy, 1);
+	}
 	return 0;
 }
 
@@ -3279,7 +3282,7 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
 }
 
 static int radio_s_tuner(struct file *file, void *priv,
-					struct v4l2_tuner *t)
+					const struct v4l2_tuner *t)
 {
 	struct bttv_fh *fh = priv;
 	struct bttv *btv = fh->btv;
diff --git a/drivers/media/pci/cx18/cx18-av-core.c b/drivers/media/pci/cx18/cx18-av-core.c
index a2c51e0468a..c22242bc10d 100644
--- a/drivers/media/pci/cx18/cx18-av-core.c
+++ b/drivers/media/pci/cx18/cx18-av-core.c
@@ -809,7 +809,7 @@ static int cx18_av_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
 	return 0;
 }
 
-static int cx18_av_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+static int cx18_av_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt)
 {
 	struct cx18_av_state *state = to_cx18_av_state(sd);
 	struct cx18 *cx = v4l2_get_subdevdata(sd);
diff --git a/drivers/media/pci/cx18/cx18-ioctl.c b/drivers/media/pci/cx18/cx18-ioctl.c
index 5cd22e7095e..173ccd204c1 100644
--- a/drivers/media/pci/cx18/cx18-ioctl.c
+++ b/drivers/media/pci/cx18/cx18-ioctl.c
@@ -673,7 +673,7 @@ int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std)
 	return 0;
 }
 
-static int cx18_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
+static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
 {
 	struct cx18_open_id *id = fh2id(fh);
 	struct cx18 *cx = id->cx;
diff --git a/drivers/media/pci/cx23885/cx23885-417.c b/drivers/media/pci/cx23885/cx23885-417.c
index 84a1b75d544..812ec5ff593 100644
--- a/drivers/media/pci/cx23885/cx23885-417.c
+++ b/drivers/media/pci/cx23885/cx23885-417.c
@@ -1280,7 +1280,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
-				struct v4l2_tuner *t)
+				const struct v4l2_tuner *t)
 {
 	struct cx23885_fh  *fh  = file->private_data;
 	struct cx23885_dev *dev = fh->dev;
diff --git a/drivers/media/pci/cx23885/cx23885-video.c b/drivers/media/pci/cx23885/cx23885-video.c
index 5ba15b8dafe..2bbda43eb00 100644
--- a/drivers/media/pci/cx23885/cx23885-video.c
+++ b/drivers/media/pci/cx23885/cx23885-video.c
@@ -1486,7 +1486,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
-				struct v4l2_tuner *t)
+				const struct v4l2_tuner *t)
 {
 	struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 
diff --git a/drivers/media/pci/cx25821/cx25821-video.c b/drivers/media/pci/cx25821/cx25821-video.c
index 1219d60cdd7..75281c1530d 100644
--- a/drivers/media/pci/cx25821/cx25821-video.c
+++ b/drivers/media/pci/cx25821/cx25821-video.c
@@ -1397,7 +1397,7 @@ int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
 	return 0;
 }
 
-int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+int cx25821_vidioc_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t)
 {
 	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
 	struct cx25821_fh *fh = priv;
diff --git a/drivers/media/pci/cx25821/cx25821-video.h b/drivers/media/pci/cx25821/cx25821-video.h
index 969340c2dcf..f0e70ffbedd 100644
--- a/drivers/media/pci/cx25821/cx25821-video.h
+++ b/drivers/media/pci/cx25821/cx25821-video.h
@@ -159,7 +159,7 @@ extern int cx25821_vidioc_s_register(struct file *file, void *fh,
 extern int cx25821_vidioc_g_tuner(struct file *file, void *priv,
 				  struct v4l2_tuner *t);
 extern int cx25821_vidioc_s_tuner(struct file *file, void *priv,
-				  struct v4l2_tuner *t);
+				  const struct v4l2_tuner *t);
 
 extern int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm);
 extern int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm);
diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c
index 82aa11f526f..486ca8d5f2a 100644
--- a/drivers/media/pci/cx88/cx88-blackbird.c
+++ b/drivers/media/pci/cx88/cx88-blackbird.c
@@ -918,7 +918,7 @@ static int vidioc_g_tuner (struct file *file, void *priv,
 }
 
 static int vidioc_s_tuner (struct file *file, void *priv,
-				struct v4l2_tuner *t)
+				const struct v4l2_tuner *t)
 {
 	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
 
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 4f10875295e..ede6f139b5c 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1289,7 +1289,7 @@ static int vidioc_g_tuner (struct file *file, void *priv,
 }
 
 static int vidioc_s_tuner (struct file *file, void *priv,
-				struct v4l2_tuner *t)
+				const struct v4l2_tuner *t)
 {
 	struct cx88_core  *core = ((struct cx8800_fh *)priv)->dev->core;
 
@@ -1409,20 +1409,15 @@ static int radio_g_tuner (struct file *file, void *priv,
 	return 0;
 }
 
-/* FIXME: Should add a standard for radio */
-
 static int radio_s_tuner (struct file *file, void *priv,
-				struct v4l2_tuner *t)
+				const struct v4l2_tuner *t)
 {
 	struct cx88_core  *core = ((struct cx8800_fh *)priv)->dev->core;
 
 	if (0 != t->index)
 		return -EINVAL;
-	if (t->audmode > V4L2_TUNER_MODE_STEREO)
-		t->audmode = V4L2_TUNER_MODE_STEREO;
 
 	call_all(core, tuner, s_tuner, t);
-
 	return 0;
 }
 
diff --git a/drivers/media/pci/ivtv/ivtv-gpio.c b/drivers/media/pci/ivtv/ivtv-gpio.c
index 8f0d0778905..af52def700c 100644
--- a/drivers/media/pci/ivtv/ivtv-gpio.c
+++ b/drivers/media/pci/ivtv/ivtv-gpio.c
@@ -192,7 +192,7 @@ static int subdev_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
 	return 0;
 }
 
-static int subdev_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
+static int subdev_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *vt)
 {
 	struct ivtv *itv = sd_to_ivtv(sd);
 	u16 mask, data;
diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.c b/drivers/media/pci/ivtv/ivtv-ioctl.c
index e6258b68d22..852f11e0d63 100644
--- a/drivers/media/pci/ivtv/ivtv-ioctl.c
+++ b/drivers/media/pci/ivtv/ivtv-ioctl.c
@@ -1196,7 +1196,7 @@ static int ivtv_s_std(struct file *file, void *fh, v4l2_std_id *std)
 	return 0;
 }
 
-static int ivtv_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
+static int ivtv_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
 {
 	struct ivtv_open_id *id = fh2id(fh);
 	struct ivtv *itv = id->itv;
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index 6c619d13f73..1e23547531b 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -2023,7 +2023,7 @@ static int saa7134_g_tuner(struct file *file, void *priv,
 }
 
 static int saa7134_s_tuner(struct file *file, void *priv,
-					struct v4l2_tuner *t)
+					const struct v4l2_tuner *t)
 {
 	struct saa7134_fh *fh = priv;
 	struct saa7134_dev *dev = fh->dev;
@@ -2347,7 +2347,7 @@ static int radio_g_tuner(struct file *file, void *priv,
 	return 0;
 }
 static int radio_s_tuner(struct file *file, void *priv,
-					struct v4l2_tuner *t)
+					const struct v4l2_tuner *t)
 {
 	struct saa7134_fh *fh = file->private_data;
 	struct saa7134_dev *dev = fh->dev;
diff --git a/drivers/media/pci/saa7146/mxb.c b/drivers/media/pci/saa7146/mxb.c
index 27dc49b03d0..9dd044b563e 100644
--- a/drivers/media/pci/saa7146/mxb.c
+++ b/drivers/media/pci/saa7146/mxb.c
@@ -560,7 +560,7 @@ static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
 	return call_all(dev, tuner, g_tuner, t);
 }
 
-static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
+static int vidioc_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *t)
 {
 	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 	struct mxb *mxb = (struct mxb *)dev->ext_priv;
diff --git a/drivers/media/pci/saa7164/saa7164-encoder.c b/drivers/media/pci/saa7164/saa7164-encoder.c
index 34f700da2e7..e7fbd036ba4 100644
--- a/drivers/media/pci/saa7164/saa7164-encoder.c
+++ b/drivers/media/pci/saa7164/saa7164-encoder.c
@@ -318,7 +318,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
-	struct v4l2_tuner *t)
+	const struct v4l2_tuner *t)
 {
 	/* Update the A/V core */
 	return 0;
diff --git a/drivers/media/pci/saa7164/saa7164-vbi.c b/drivers/media/pci/saa7164/saa7164-vbi.c
index 5a8a6adb894..bfc8cec110d 100644
--- a/drivers/media/pci/saa7164/saa7164-vbi.c
+++ b/drivers/media/pci/saa7164/saa7164-vbi.c
@@ -290,7 +290,7 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
-	struct v4l2_tuner *t)
+	const struct v4l2_tuner *t)
 {
 	/* Update the A/V core */
 	return 0;
diff --git a/drivers/media/pci/ttpci/av7110_v4l.c b/drivers/media/pci/ttpci/av7110_v4l.c
index 65adaa74c51..6c4076acb13 100644
--- a/drivers/media/pci/ttpci/av7110_v4l.c
+++ b/drivers/media/pci/ttpci/av7110_v4l.c
@@ -366,7 +366,7 @@ static int vidioc_g_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
 	return 0;
 }
 
-static int vidioc_s_tuner(struct file *file, void *fh, struct v4l2_tuner *t)
+static int vidioc_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *t)
 {
 	struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
 	struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;