RDS: Invoke ->laddr_check() in rds_bind() for explicitly bound transports.

[firefly-linux-kernel-4.4.55.git] / net / rds / bind.c

diff --git a/net/rds/bind.c b/net/rds/bind.c
index bc6b93ecedb512bdcd75a9e765b2bd31cf2f0e81..61925667b7a43ca33fd2d2b692a741ee059c6e18 100644 (file)
--- a/net/rds/bind.c
+++ b/net/rds/bind.c
@@ -196,7 +196,14 @@ int rds_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
                goto out;
 
        if (rs->rs_transport) { /* previously bound */
-               ret = 0;
+               trans = rs->rs_transport;
+               if (trans->laddr_check(sock_net(sock->sk),
+                                      sin->sin_addr.s_addr) != 0) {
+                       ret = -ENOPROTOOPT;
+                       rds_remove_bound(rs);
+               } else {
+                       ret = 0;
+               }
                goto out;
        }
        trans = rds_trans_get_preferred(sock_net(sock->sk),