bridge: use list_for_each_entry_continue_reverse

use list_for_each_entry_continue_reverse to rollback in fdb_add_hw
when add address failed

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index b524c36c12731b6c84a7587125fdf2db6417c830..7be33667a839fed9ee6b218ab8ce2ac64d77dd81 100644 (file)
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -93,7 +93,7 @@ static void fdb_rcu_free(struct rcu_head *head)
 static void fdb_add_hw(struct net_bridge *br, const unsigned char *addr)
 {
        int err;
-       struct net_bridge_port *p, *tmp;
+       struct net_bridge_port *p;
 
        ASSERT_RTNL();
 
@@ -107,11 +107,9 @@ static void fdb_add_hw(struct net_bridge *br, const unsigned char *addr)
 
        return;
 undo:
-       list_for_each_entry(tmp, &br->port_list, list) {
-               if (tmp == p)
-                       break;
-               if (!br_promisc_port(tmp))
-                       dev_uc_del(tmp->dev, addr);
+       list_for_each_entry_continue_reverse(p, &br->port_list, list) {
+               if (!br_promisc_port(p))
+                       dev_uc_del(p->dev, addr);
        }
 }