netfilter: nf_tables: report use refcount overflow

[platform/kernel/linux-rpi.git] / net / netfilter / nft_immediate.c

diff --git a/net/netfilter/nft_immediate.c b/net/netfilter/nft_immediate.c
index 3d76ebf..407d719 100644 (file)
--- a/net/netfilter/nft_immediate.c
+++ b/net/netfilter/nft_immediate.c
@@ -159,7 +159,7 @@ static void nft_immediate_deactivate(const struct nft_ctx *ctx,
                        default:
                                nft_chain_del(chain);
                                chain->bound = false;
-                               chain->table->use--;
+                               nft_use_dec(&chain->table->use);
                                break;
                        }
                        break;
@@ -198,7 +198,7 @@ static void nft_immediate_destroy(const struct nft_ctx *ctx,
                 * let the transaction records release this chain and its rules.
                 */
                if (chain->bound) {
-                       chain->use--;
+                       nft_use_dec(&chain->use);
                        break;
                }
 
@@ -206,9 +206,9 @@ static void nft_immediate_destroy(const struct nft_ctx *ctx,
                chain_ctx = *ctx;
                chain_ctx.chain = chain;
 
-               chain->use--;
+               nft_use_dec(&chain->use);
                list_for_each_entry_safe(rule, n, &chain->rules, list) {
-                       chain->use--;
+                       nft_use_dec(&chain->use);
                        list_del(&rule->list);
                        nf_tables_rule_destroy(&chain_ctx, rule);
                }