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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 <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
This commit is contained in:
Gao Feng 2016-09-10 10:04:30 +08:00 • committed by Pablo Neira Ayuso
commit 23d07508d2
6 changed files with 33 additions and 10 deletions
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5
net/ipv6/netfilter/nf_tables_ipv6.c
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@ -100,7 +100,10 @@ static int __init nf_tables_ipv6_init(void)
{
int ret;
nft_register_chain_type(&filter_ipv6);
ret = nft_register_chain_type(&filter_ipv6);
if (ret < 0)
return ret;
ret = register_pernet_subsys(&nf_tables_ipv6_net_ops);
if (ret < 0)
nft_unregister_chain_type(&filter_ipv6);