+static void local_release(struct kref *ref)
+{
+ struct nfc_llcp_local *local;
+
+ local = container_of(ref, struct nfc_llcp_local, ref);
+
+ list_del(&local->list);
+ nfc_llcp_socket_release(local, false);
+ del_timer_sync(&local->link_timer);
+ skb_queue_purge(&local->tx_queue);
+ destroy_workqueue(local->tx_wq);
+ destroy_workqueue(local->rx_wq);
+ destroy_workqueue(local->timeout_wq);
+ kfree_skb(local->rx_pending);
+ kfree(local);
+}
+
+int nfc_llcp_local_put(struct nfc_llcp_local *local)
+{
+ if (local == NULL)
+ return 0;
+
+ return kref_put(&local->ref, local_release);
+}
+
+static struct nfc_llcp_sock *nfc_llcp_sock_get(struct nfc_llcp_local *local,
+ u8 ssap, u8 dsap)
+{
+ struct sock *sk;
+ struct hlist_node *node;
+ struct nfc_llcp_sock *llcp_sock;
+
+ pr_debug("ssap dsap %d %d\n", ssap, dsap);
+
+ if (ssap == 0 && dsap == 0)
+ return NULL;
+
+ read_lock(&local->sockets.lock);
+
+ llcp_sock = NULL;
+
+ sk_for_each(sk, node, &local->sockets.head) {
+ llcp_sock = nfc_llcp_sock(sk);
+
+ if (llcp_sock->ssap == ssap && llcp_sock->dsap == dsap)
+ break;
+ }
+
+ read_unlock(&local->sockets.lock);
+
+ if (llcp_sock == NULL)
+ return NULL;
+
+ sock_hold(&llcp_sock->sk);
+
+ return llcp_sock;
+}
+
+static void nfc_llcp_sock_put(struct nfc_llcp_sock *sock)
+{
+ sock_put(&sock->sk);