[IPV4] fib_hash: fix duplicated route issue

[linux-2.6-omap-h63xx.git] / net / ipv4 / fib_hash.c

diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 527a6e0af5b60eb48b9e15459e8877db10c29db8..99071d79c5e75f4ef411154b16e8776297d2b257 100644 (file)
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -444,6 +444,9 @@ static int fn_hash_insert(struct fib_table *tb, struct fib_config *cfg)
                        struct fib_info *fi_drop;
                        u8 state;
 
+                       if (fi->fib_treeref > 1)
+                               goto out;
+
                        write_lock_bh(&fib_hash_lock);
                        fi_drop = fa->fa_info;
                        fa->fa_info = fi;