[media] siano: avoid a linkedit error if !MC

If the media controller (MC) is not enabled, it will compile
fine, but will fail at the linkedition:

 ERROR: "media_device_unregister" [drivers/media/usb/siano/smsusb.ko] undefined!

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c
index 0b13ad3d3a8c143d4d60f404ea4740f56b597c60..c945e4c2fbd49cdb0ffab93a53cd72ee37e81db7 100644 (file)
--- a/drivers/media/usb/siano/smsusb.c
+++ b/drivers/media/usb/siano/smsusb.c
@@ -440,7 +440,9 @@ static int smsusb_init_device(struct usb_interface *intf, int board_id)
        if (rc < 0) {
                pr_err("smscore_register_device(...) failed, rc %d\n", rc);
                smsusb_term_device(intf);
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
                media_device_unregister(mdev);
+#endif
                kfree(mdev);
                return rc;
        }