net: farsync: remove redundant return

Void function return statements are not generally useful.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/wan/farsync.c

@@ -1156,7 +1156,6 @@ fst_recover_rx_error(struct fst_card_info *card, struct fst_port_info *port,
 		rxp = (rxp + 1) % NUM_RX_BUFFER;
 	}
 	port->rxpos = rxp;
-	return;
 }
 
 /*      Rx complete interrupt