netfilter: add missing error handling code for register functions

[linux-block.git] / net / ipv4 / netfilter / nft_masq_ipv4.c

diff --git a/net/ipv4/netfilter/nft_masq_ipv4.c b/net/ipv4/netfilter/nft_masq_ipv4.c
index f1193e1e928aa14aaa88371d78558a46ed9c9d59..6847de1d1db8a7e4c86dd27f5c4310df4627c296 100644 (file)
--- a/net/ipv4/netfilter/nft_masq_ipv4.c
+++ b/net/ipv4/netfilter/nft_masq_ipv4.c
@@ -69,7 +69,9 @@ static int __init nft_masq_ipv4_module_init(void)
        if (ret < 0)
                return ret;
 
-       nf_nat_masquerade_ipv4_register_notifier();
+       ret = nf_nat_masquerade_ipv4_register_notifier();
+       if (ret)
+               nft_unregister_expr(&nft_masq_ipv4_type);
 
        return ret;
 }