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netfilter: remove unnecessary goto statement for error recovery

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Usually it's a good practice to use goto statement for error recovery
when initializing the module. This approach could be an overkill if:

 1) there is only one fail case;
 2) success and failure use the same return statement.

For a cleaner approach, remove the unnecessary goto statement and
directly implement error recovery.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Jean Sacren 2012-08-19 15:11:32 +00:00 committed by Pablo Neira Ayuso
parent 6705e86724
commit 90efbed18a
3 changed files with 3 additions and 15 deletions
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6
net/ipv4/netfilter/iptable_filter.c
View file

@ -94,14 +94,10 @@ static int __init iptable_filter_init(void)
filter_ops = xt_hook_link(&packet_filter, iptable_filter_hook);
if (IS_ERR(filter_ops)) {
ret = PTR_ERR(filter_ops);
goto cleanup_table;
unregister_pernet_subsys(&iptable_filter_net_ops);
}
return ret;
cleanup_table:
unregister_pernet_subsys(&iptable_filter_net_ops);
return ret;
}
static void __exit iptable_filter_fini(void)

6
net/ipv4/netfilter/iptable_mangle.c
View file

@ -129,14 +129,10 @@ static int __init iptable_mangle_init(void)
mangle_ops = xt_hook_link(&packet_mangler, iptable_mangle_hook);
if (IS_ERR(mangle_ops)) {
ret = PTR_ERR(mangle_ops);
goto cleanup_table;
unregister_pernet_subsys(&iptable_mangle_net_ops);
}
return ret;
cleanup_table:
unregister_pernet_subsys(&iptable_mangle_net_ops);
return ret;
}
static void __exit iptable_mangle_fini(void)

6
net/ipv4/netfilter/iptable_raw.c
View file

@ -73,14 +73,10 @@ static int __init iptable_raw_init(void)
rawtable_ops = xt_hook_link(&packet_raw, iptable_raw_hook);
if (IS_ERR(rawtable_ops)) {
ret = PTR_ERR(rawtable_ops);
goto cleanup_table;
unregister_pernet_subsys(&iptable_raw_net_ops);
}
return ret;
cleanup_table:
unregister_pernet_subsys(&iptable_raw_net_ops);
return ret;
}
static void __exit iptable_raw_fini(void)