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netfilter: nf_tables: consolidate error path of nf_tables_newtable()

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Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2015-03-17 19:53:23 +01:00
parent 1ca9e41770
commit ffdb210eb4
1 changed files with 11 additions and 9 deletions
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20
net/netfilter/nf_tables_api.c
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@ -687,11 +687,10 @@ static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
if (!try_module_get(afi->owner))
return -EAFNOSUPPORT;
err = -ENOMEM;
table = kzalloc(sizeof(*table), GFP_KERNEL);
if (table == NULL) {
module_put(afi->owner);
return -ENOMEM;
}
if (table == NULL)
goto err1;
nla_strlcpy(table->name, name, NFT_TABLE_MAXNAMELEN);
INIT_LIST_HEAD(&table->chains);
@ -700,13 +699,16 @@ static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
nft_ctx_init(&ctx, skb, nlh, afi, table, NULL, nla);
err = nft_trans_table_add(&ctx, NFT_MSG_NEWTABLE);
if (err < 0) {
kfree(table);
module_put(afi->owner);
return err;
}
if (err < 0)
goto err2;
list_add_tail_rcu(&table->list, &afi->tables);
return 0;
err2:
kfree(table);
err1:
module_put(afi->owner);
return err;
}
static int nft_flush_table(struct nft_ctx *ctx)