rds: remove unnecessary returned value check

The function rds_trans_register always returns 0. As such, it is not
necessary to check the returned value.

Cc: Joe Jin <[e-mail]>
Cc: Junxiao Bi <[e-mail]>
Signed-off-by: Zhu Yanjun <[e-mail]>
Reviewed-by: Yuval Shaia <[e-mail]>
Acked-by: Santosh Shilimkar <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/rds/ib.c

···
 	if (ret)
 		goto out_sysctl;
 
-	ret = rds_trans_register(&rds_ib_transport);
-	if (ret)
-		goto out_recv;
+	rds_trans_register(&rds_ib_transport);
 
 	rds_info_register_func(RDS_INFO_IB_CONNECTIONS, rds_ib_ic_info);
 
 	goto out;
 
-out_recv:
-	rds_ib_recv_exit();
 out_sysctl:
 	rds_ib_sysctl_exit();
 out_ibreg:

net/rds/rds.h

···
 void rds_connect_complete(struct rds_connection *conn);
 
 /* transport.c */
-int rds_trans_register(struct rds_transport *trans);
+void rds_trans_register(struct rds_transport *trans);
 void rds_trans_unregister(struct rds_transport *trans);
 struct rds_transport *rds_trans_get_preferred(struct net *net, __be32 addr);
 void rds_trans_put(struct rds_transport *trans);

net/rds/tcp.c

···
 	if (ret)
 		goto out_pernet;
 
-	ret = rds_trans_register(&rds_tcp_transport);
-	if (ret)
-		goto out_recv;
+	rds_trans_register(&rds_tcp_transport);
 
 	rds_info_register_func(RDS_INFO_TCP_SOCKETS, rds_tcp_tc_info);
 
 	goto out;
 
-out_recv:
-	rds_tcp_recv_exit();
 out_pernet:
 	unregister_pernet_subsys(&rds_tcp_net_ops);
 out_notifier:

net/rds/transport.c

···
 static struct rds_transport *transports[RDS_TRANS_COUNT];
 static DECLARE_RWSEM(rds_trans_sem);
 
-int rds_trans_register(struct rds_transport *trans)
+void rds_trans_register(struct rds_transport *trans)
 {
 	BUG_ON(strlen(trans->t_name) + 1 > TRANSNAMSIZ);
 
···
 	}
 
 	up_write(&rds_trans_sem);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(rds_trans_register);