netfilter: Add the missed return value check of nft_register_chain_type
There are some codes of netfilter module which did not check the return
value of nft_register_chain_type. Add the checks now.
Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
diff --git a/net/netfilter/nf_tables_inet.c b/net/netfilter/nf_tables_inet.c
index 6b5f762..f713cc2 100644
--- a/net/netfilter/nf_tables_inet.c
+++ b/net/netfilter/nf_tables_inet.c
@@ -82,7 +82,10 @@
{
int ret;
- nft_register_chain_type(&filter_inet);
+ ret = nft_register_chain_type(&filter_inet);
+ if (ret < 0)
+ return ret;
+
ret = register_pernet_subsys(&nf_tables_inet_net_ops);
if (ret < 0)
nft_unregister_chain_type(&filter_inet);