[media] fc2580: silence uninitialized variable warning

fc2580.c: In function 'fc2580_set_params':
fc2580.c:118: warning: 'ret' may be used uninitialized in this function

Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/tuners/fc2580.c

@@ -115,7 +115,7 @@ static int fc2580_set_params(struct dvb_frontend *fe)
 {
 	struct fc2580_priv *priv = fe->tuner_priv;
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	int ret, i;
+	int ret = 0, i;
 	unsigned int r_val, n_val, k_val, k_val_reg, f_ref;
 	u8 tmp_val, r18_val;
 	u64 f_vco;