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netfilter: Add the missed return value check of nft_register_chain_type

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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>
This commit is contained in:
Gao Feng
2016-09-10 10:04:30 +08:00
committed by Pablo Neira Ayuso
parent 4e6577de71
commit 23d07508d2
6 changed files with 33 additions and 10 deletions
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5
net/ipv4/netfilter/nf_tables_arp.c
View File

@@ -80,7 +80,10 @@ static int __init nf_tables_arp_init(void)
{
int ret;
nft_register_chain_type(&filter_arp);
ret = nft_register_chain_type(&filter_arp);
if (ret < 0)
return ret;
ret = register_pernet_subsys(&nf_tables_arp_net_ops);
if (ret < 0)
nft_unregister_chain_type(&filter_arp);

5
net/ipv4/netfilter/nf_tables_ipv4.c
View File

@@ -103,7 +103,10 @@ static int __init nf_tables_ipv4_init(void)
{
int ret;
nft_register_chain_type(&filter_ipv4);
ret = nft_register_chain_type(&filter_ipv4);
if (ret < 0)
return ret;
ret = register_pernet_subsys(&nf_tables_ipv4_net_ops);
if (ret < 0)
nft_unregister_chain_type(&filter_ipv4);