[media] au0828: postpone call to au0828_unregister_media_device()

The DVB core needs to unregister the media device. So, we
can't call au0828_unregister_media_device() before calling
au0828_dvb_unregister(), otherwise the DVB MC free code
(that will be implemented on the next patch) will fail.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/usb/au0828/au0828-core.c

@@ -178,8 +178,6 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
 	*/
 	dev->dev_state = DEV_DISCONNECTED;
 
-	au0828_unregister_media_device(dev);
-
 	au0828_rc_unregister(dev);
 	/* Digital TV */
 	au0828_dvb_unregister(dev);
@@ -193,6 +191,10 @@ static void au0828_usb_disconnect(struct usb_interface *interface)
 		au0828_analog_unregister(dev);
 		v4l2_device_disconnect(&dev->v4l2_dev);
 		v4l2_device_put(&dev->v4l2_dev);
+		/*
+		 * No need to call au0828_usb_release() if V4L2 is enabled,
+		 * as this is already called via au0828_usb_v4l2_release()
+		 */
 		return;
 	}
 #endif