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-rw-r--r--net/ipv4/fib_trie.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 8d8c2915e064..1010b469d7d3 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1214,6 +1214,9 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
1214 struct fib_info *fi_drop; 1214 struct fib_info *fi_drop;
1215 u8 state; 1215 u8 state;
1216 1216
1217 if (fi->fib_treeref > 1)
1218 goto out;
1219
1217 err = -ENOBUFS; 1220 err = -ENOBUFS;
1218 new_fa = kmem_cache_alloc(fn_alias_kmem, GFP_KERNEL); 1221 new_fa = kmem_cache_alloc(fn_alias_kmem, GFP_KERNEL);
1219 if (new_fa == NULL) 1222 if (new_fa == NULL)