V4L/DVB (8482): videodev: move all ioctl callbacks to a new v4l2_ioctl_ops struct

All ioctl callbacks are now stored in a new v4l2_ioctl_ops struct. Drivers fill in
a const struct v4l2_ioctl_ops and video_device just contains a const pointer to it.

This ensures a clean separation between the const ops struct and the non-const
video_device struct.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/radio/radio-gemtek.c b/drivers/media/radio/radio-gemtek.c
index 4740bac..f82b59f 100644
--- a/drivers/media/radio/radio-gemtek.c
+++ b/drivers/media/radio/radio-gemtek.c
@@ -553,11 +553,7 @@
 	return 0;
 }
 
-static struct video_device gemtek_radio = {
-	.owner			= THIS_MODULE,
-	.name			= "GemTek Radio card",
-	.type			= VID_TYPE_TUNER,
-	.fops			= &gemtek_fops,
+static const struct v4l2_ioctl_ops gemtek_ioctl_ops = {
 	.vidioc_querycap	= vidioc_querycap,
 	.vidioc_g_tuner		= vidioc_g_tuner,
 	.vidioc_s_tuner		= vidioc_s_tuner,
@@ -572,6 +568,14 @@
 	.vidioc_s_ctrl		= vidioc_s_ctrl
 };
 
+static struct video_device gemtek_radio = {
+	.owner			= THIS_MODULE,
+	.name			= "GemTek Radio card",
+	.type			= VID_TYPE_TUNER,
+	.fops			= &gemtek_fops,
+	.ioctl_ops 		= &gemtek_ioctl_ops,
+};
+
 /*
  * Initialization / cleanup related stuff.
  */