[media] tda10071: fix a warning introduced by changeset 41f55d57

The two new tests don't set the returned value.

Cc: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb-frontends/tda10071.c

@@ -1205,12 +1205,14 @@ struct dvb_frontend *tda10071_attach(const struct tda10071_config *config,
 	/* make sure demod i2c address is specified */
 	if (!config->demod_i2c_addr) {
 		dev_dbg(&i2c->dev, "%s: invalid demod i2c address!\n", __func__);
+		ret = -EINVAL;
 		goto error;
 	}
 
 	/* make sure tuner i2c address is specified */
 	if (!config->tuner_i2c_addr) {
 		dev_dbg(&i2c->dev, "%s: invalid tuner i2c address!\n", __func__);
+		ret = -EINVAL;
 		goto error;
 	}