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netfilter: nf_tables: add nft_flowtable_hooks_destroy()

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This patch adds a helper function destroy the flowtable hooks.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2020-05-20 13:43:43 +02:00
parent f9382669cf
commit 389a2cbcb7
1 changed files with 11 additions and 4 deletions
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15
net/netfilter/nf_tables_api.c
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@ -6339,6 +6339,16 @@ err_unregister_net_hooks:
return err;
}
static void nft_flowtable_hooks_destroy(struct list_head *hook_list)
{
struct nft_hook *hook, *next;
list_for_each_entry_safe(hook, next, hook_list, list) {
list_del_rcu(&hook->list);
kfree_rcu(hook, rcu);
}
}
static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
struct sk_buff *skb,
const struct nlmsghdr *nlh,
@ -6433,10 +6443,7 @@ static int nf_tables_newflowtable(struct net *net, struct sock *nlsk,
&flowtable->hook_list,
flowtable);
if (err < 0) {
list_for_each_entry_safe(hook, next, &flowtable->hook_list, list) {
list_del_rcu(&hook->list);
kfree_rcu(hook, rcu);
}
nft_flowtable_hooks_destroy(&flowtable->hook_list);
goto err4;
}