[media] dvb: Avoid warnings when compiled without the media controller

drivers/media/usb/dvb-usb-v2/dvb_usb_core.c: In function ‘dvb_usbv2_adapter_dvb_exit’:
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:531:25: warning: unused variable ‘d’ [-Wunused-variable]
  struct dvb_usb_device *d = adap_to_d(adap);
                         ^
drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:403:13: warning: ‘dvb_usbv2_media_device_register’ defined but not used [-Wunused-function]
 static void dvb_usbv2_media_device_register(struct dvb_usb_adapter *adap)

drivers/media/usb/dvb-usb/dvb-usb-dvb.c:97:13: warning: ‘dvb_usb_media_device_register’ defined but not used [-Wunused-function]
 static void dvb_usb_media_device_register(struct dvb_usb_adapter *adap)
             ^
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/common/siano/smsdvb-main.c

@@ -611,9 +611,9 @@ static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
 
 static void smsdvb_media_device_unregister(struct smsdvb_client_t *client)
 {
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
 	struct smscore_device_t *coredev = client->coredev;
 
-#ifdef CONFIG_MEDIA_CONTROLLER_DVB
 	if (!coredev->media_dev)
 		return;
 	media_device_unregister(coredev->media_dev);

drivers/media/usb/dvb-usb-v2/dvb_usb_core.c

@@ -467,9 +467,7 @@ static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
 
 	adap->dvb_adap.priv = adap;
 
-#ifdef CONFIG_MEDIA_CONTROLLER_DVB
 	dvb_usbv2_media_device_register(adap);
-#endif
 
 	if (d->props->read_mac_address) {
 		ret = d->props->read_mac_address(adap,
@@ -528,8 +526,6 @@ static int dvb_usbv2_adapter_dvb_init(struct dvb_usb_adapter *adap)
 
 static int dvb_usbv2_adapter_dvb_exit(struct dvb_usb_adapter *adap)
 {
-	struct dvb_usb_device *d = adap_to_d(adap);
-
 	dev_dbg(&adap_to_d(adap)->udev->dev, "%s: adap=%d\n", __func__,
 			adap->id);
 

drivers/media/usb/dvb-usb/dvb-usb-dvb.c

@@ -153,9 +153,7 @@ int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums)
 	}
 	adap->dvb_adap.priv = adap;
 
-#ifdef CONFIG_MEDIA_CONTROLLER_DVB
 	dvb_usb_media_device_register(adap);
-#endif
 
 	if (adap->dev->props.read_mac_address) {
 		if (adap->dev->props.read_mac_address(adap->dev,adap->dvb_adap.proposed_mac) == 0)