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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-04-28 15:57:56 +0300 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-04-28 16:49:48 +0300 |
| commit | 7dde07e9c53617549d67dd3e1d791496d0d3868e (patch) | |
| tree | 90871e7de607b7aeee66199f795f6eee578813ef /net/netfilter | |
| parent | 9dd2ab609eef736d5639e0de1bcc2e71e714b28e (diff) | |
| download | linux-7dde07e9c53617549d67dd3e1d791496d0d3868e.tar.xz | |
netfilter: x_tables: unlock on error in xt_find_table_lock()
According to my static checker we should unlock here before the return.
That seems reasonable to me as well.
Fixes" b9e69e127397 ("netfilter: xtables: don't hook tables by default")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/x_tables.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c index 14857afc9937..f134d384852f 100644 --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -1051,8 +1051,10 @@ struct xt_table *xt_find_table_lock(struct net *net, u_int8_t af, list_for_each_entry(t, &init_net.xt.tables[af], list) { if (strcmp(t->name, name)) continue; - if (!try_module_get(t->me)) + if (!try_module_get(t->me)) { + mutex_unlock(&xt[af].mutex); return NULL; + } mutex_unlock(&xt[af].mutex); if (t->table_init(net) != 0) { |