[media] ivtv: fill in service_set

The service_set field of struct v4l2_sliced_vbi_cap was never filled in.
The v4l2-compliance tool complained about this, so this is now fixed.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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

@@ -1203,9 +1203,7 @@ static int ivtv_g_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_sliced
 					cap->service_lines[f][l] = set;
 			}
 		}
-		return 0;
-	}
-	if (cap->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) {
+	} else if (cap->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) {
 		if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT))
 			return -EINVAL;
 		if (itv->is_60hz) {
@@ -1215,9 +1213,16 @@ static int ivtv_g_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_sliced
 			cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
 			cap->service_lines[0][16] = V4L2_SLICED_VPS;
 		}
-		return 0;
+	} else {
+		return -EINVAL;
 	}
-	return -EINVAL;
+
+	set = 0;
+	for (f = 0; f < 2; f++)
+		for (l = 0; l < 24; l++)
+			set |= cap->service_lines[f][l];
+	cap->service_set = set;
+	return 0;
 }
 
 static int ivtv_g_enc_index(struct file *file, void *fh, struct v4l2_enc_idx *idx)