[media] sliced vbi: subdevs shouldn't clear the full v4l2_sliced_vbi_format struct

Various subdevs cleared the full v4l2_sliced_vbi_format struct, when
only the service_set/lines fields should have been cleared.
Due to this the io_size field was wrongly cleared to 0, causing a
v4l2-compliance error.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/i2c/cx25840/cx25840-vbi.c

@@ -96,7 +96,8 @@ int cx25840_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *
 	int is_pal = !(state->std & V4L2_STD_525_60);
 	int i;
 
-	memset(svbi, 0, sizeof(*svbi));
+	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
+	svbi->service_set = 0;
 	/* we're done if raw VBI is active */
 	if ((cx25840_read(client, 0x404) & 0x10) == 0)
 		return 0;

drivers/media/i2c/saa7115.c

@@ -1066,7 +1066,8 @@ static int saa711x_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_f
 	};
 	int i;
 
-	memset(sliced, 0, sizeof(*sliced));
+	memset(sliced->service_lines, 0, sizeof(sliced->service_lines));
+	sliced->service_set = 0;
 	/* done if using raw VBI */
 	if (saa711x_read(sd, R_80_GLOBAL_CNTL_1) & 0x10)
 		return 0;

drivers/media/i2c/saa7127.c

@@ -625,7 +625,7 @@ static int saa7127_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_f
 {
 	struct saa7127_state *state = to_state(sd);
 
-	memset(fmt, 0, sizeof(*fmt));
+	memset(fmt->service_lines, 0, sizeof(fmt->service_lines));
 	if (state->vps_enable)
 		fmt->service_lines[0][16] = V4L2_SLICED_VPS;
 	if (state->wss_enable)

drivers/media/i2c/tvp5150.c

@@ -1020,7 +1020,7 @@ static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_f
 {
 	int i, mask = 0;
 
-	memset(svbi, 0, sizeof(*svbi));
+	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
 
 	for (i = 0; i <= 23; i++) {
 		svbi->service_lines[0][i] =

drivers/media/pci/cx18/cx18-av-vbi.c

@@ -143,7 +143,9 @@ int cx18_av_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *
 	int is_pal = !(state->std & V4L2_STD_525_60);
 	int i;
 
-	memset(svbi, 0, sizeof(*svbi));
+	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
+	svbi->service_set = 0;
+
 	/* we're done if raw VBI is active */
 	if ((cx18_av_read(cx, 0x404) & 0x10) == 0)
 		return 0;

drivers/media/pci/cx18/cx18-ioctl.c

@@ -210,10 +210,6 @@ static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
 	if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))
 		return -EINVAL;
 
-	/* Ensure V4L2 spec compliant output */
-	vbifmt->reserved[0] = 0;
-	vbifmt->reserved[1] = 0;
-	vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
 	vbifmt->service_set = cx18_get_service_set(vbifmt);
 	return 0;
 }

drivers/media/pci/ivtv/ivtv-ioctl.c

@@ -326,6 +326,7 @@ static int ivtv_g_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_fo
 	if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT))
 		return -EINVAL;
 	vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
+	memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));
 	if (itv->is_60hz) {
 		vbifmt->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
 		vbifmt->service_lines[1][21] = V4L2_SLICED_CAPTION_525;