V4L/DVB (3743): Fix some more potential oopses

Spotted a couple more places where it fails to check if
dvb_register_adapter() fails.
Signed-off-by: NAndrew de Quincey <adq_dvb@lidskialf.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/cinergyT2/cinergyT2.c

@@ -902,7 +902,10 @@ static int cinergyt2_probe (struct usb_interface *intf,
 		return -ENOMEM;
 	}
 
-	dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE);
+	if ((err = dvb_register_adapter(&cinergyt2->adapter, DRIVER_NAME, THIS_MODULE)) < 0) {
+		kfree(cinergyt2);
+		return err;
+	}
 
 	cinergyt2->demux.priv = cinergyt2;
 	cinergyt2->demux.filternum = 256;

drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c

@@ -1507,7 +1507,11 @@ static int ttusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 
 	mutex_unlock(&ttusb->semi2c);
 
-	dvb_register_adapter(&ttusb->adapter, "Technotrend/Hauppauge Nova-USB", THIS_MODULE);
+	if ((result = dvb_register_adapter(&ttusb->adapter, "Technotrend/Hauppauge Nova-USB", THIS_MODULE)) < 0) {
+		ttusb_free_iso_urbs(ttusb);
+		kfree(ttusb);
+		return result;
+	}
 	ttusb->adapter.priv = ttusb;
 
 	/* i2c */