diff options
| author | Ziyang Xuan <william.xuanziyang@huawei.com> | 2022-11-20 15:28:38 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-02 17:41:07 +0100 |
| commit | 1d44ec8507b7000879c48396332a1ff565e16086 (patch) | |
| tree | 349cf514520f7b386874515d6c1ae7c3214e8c71 /net | |
| parent | 918e83c6bfa735cc5886def796f8d4d58365af62 (diff) | |
ipv4: Fix error return code in fib_table_insert()
[ Upstream commit 568fe84940ac0e4e0b2cd7751b8b4911f7b9c215 ]
In fib_table_insert(), if the alias was already inserted, but node not
exist, the error code should be set before return from error handling path.
Fixes: a6c76c17df02 ("ipv4: Notify route after insertion to the routing table")
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Link: https://lore.kernel.org/r/20221120072838.2167047-1-william.xuanziyang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/fib_trie.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 19c6e7b93d3d..52f9f69f57b3 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1375,8 +1375,10 @@ int fib_table_insert(struct net *net, struct fib_table *tb, /* The alias was already inserted, so the node must exist. */ l = l ? l : fib_find_node(t, &tp, key); - if (WARN_ON_ONCE(!l)) + if (WARN_ON_ONCE(!l)) { + err = -ENOENT; goto out_free_new_fa; + } if (fib_find_alias(&l->leaf, new_fa->fa_slen, 0, 0, tb->tb_id, true) == new_fa) { |