diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index ddf84f226822..07140899a8d1 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -7452,11 +7452,9 @@ static int nf_tables_dump_obj(struct sk_buff *skb, struct netlink_callback *cb) goto cont; if (idx < s_idx) goto cont; - if (filter && filter->table && - strcmp(filter->table, table->name)) + if (filter->table && strcmp(filter->table, table->name)) goto cont; - if (filter && - filter->type != NFT_OBJECT_UNSPEC && + if (filter->type != NFT_OBJECT_UNSPEC && obj->ops->type->type != filter->type) goto cont; @@ -7491,23 +7489,21 @@ static int nf_tables_dump_obj_start(struct netlink_callback *cb) const struct nlattr * const *nla = cb->data; struct nft_obj_filter *filter = NULL; - if (nla[NFTA_OBJ_TABLE] || nla[NFTA_OBJ_TYPE]) { - filter = kzalloc(sizeof(*filter), GFP_ATOMIC); - if (!filter) + filter = kzalloc(sizeof(*filter), GFP_ATOMIC); + if (!filter) + return -ENOMEM; + + if (nla[NFTA_OBJ_TABLE]) { + filter->table = nla_strdup(nla[NFTA_OBJ_TABLE], GFP_ATOMIC); + if (!filter->table) { + kfree(filter); return -ENOMEM; - - if (nla[NFTA_OBJ_TABLE]) { - filter->table = nla_strdup(nla[NFTA_OBJ_TABLE], GFP_ATOMIC); - if (!filter->table) { - kfree(filter); - return -ENOMEM; - } } - - if (nla[NFTA_OBJ_TYPE]) - filter->type = ntohl(nla_get_be32(nla[NFTA_OBJ_TYPE])); } + if (nla[NFTA_OBJ_TYPE]) + filter->type = ntohl(nla_get_be32(nla[NFTA_OBJ_TYPE])); + cb->data = filter; return 0; } @@ -7516,10 +7512,8 @@ static int nf_tables_dump_obj_done(struct netlink_callback *cb) { struct nft_obj_filter *filter = cb->data; - if (filter) { - kfree(filter->table); - kfree(filter); - } + kfree(filter->table); + kfree(filter); return 0; }