1 files changed, 0 insertions, 700 deletions

diff --git a/net/tipc/server.c b/net/tipc/server.c
deleted file mode 100644
index 0e351e81690e..000000000000
--- a/net/tipc/server.c
+++ /dev/null
@@ -1,700 +0,0 @@
-/*
- * net/tipc/server.c: TIPC server infrastructure
- *
- * Copyright (c) 2012-2013, Wind River Systems
- * Copyright (c) 2017, Ericsson AB
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the names of the copyright holders nor the names of its
- *    contributors may be used to endorse or promote products derived from
- *    this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "subscr.h"
-#include "server.h"
-#include "core.h"
-#include "socket.h"
-#include "addr.h"
-#include "msg.h"
-#include <net/sock.h>
-#include <linux/module.h>
-
-/* Number of messages to send before rescheduling */
-#define MAX_SEND_MSG_COUNT	25
-#define MAX_RECV_MSG_COUNT	25
-#define CF_CONNECTED		1
-#define CF_SERVER		2
-
-#define TIPC_SERVER_NAME_LEN	32
-
-/**
- * struct tipc_server - TIPC server structure
- * @conn_idr: identifier set of connection
- * @idr_lock: protect the connection identifier set
- * @idr_in_use: amount of allocated identifier entry
- * @net: network namspace instance
- * @rcvbuf_cache: memory cache of server receive buffer
- * @rcv_wq: receive workqueue
- * @send_wq: send workqueue
- * @max_rcvbuf_size: maximum permitted receive message length
- * @tipc_conn_new: callback will be called when new connection is incoming
- * @tipc_conn_release: callback will be called before releasing the connection
- * @tipc_conn_recvmsg: callback will be called when message arrives
- * @name: server name
- * @imp: message importance
- * @type: socket type
- */
-struct tipc_server {
-	struct idr conn_idr;
-	spinlock_t idr_lock; /* for idr list */
-	int idr_in_use;
-	struct net *net;
-	struct work_struct awork;
-	struct workqueue_struct *rcv_wq;
-	struct workqueue_struct *send_wq;
-	int max_rcvbuf_size;
-	struct socket *listener;
-	char name[TIPC_SERVER_NAME_LEN];
-};
-
-/**
- * struct tipc_conn - TIPC connection structure
- * @kref: reference counter to connection object
- * @conid: connection identifier
- * @sock: socket handler associated with connection
- * @flags: indicates connection state
- * @server: pointer to connected server
- * @sub_list: lsit to all pertaing subscriptions
- * @sub_lock: lock protecting the subscription list
- * @outqueue_lock: control access to the outqueue
- * @rwork: receive work item
- * @rx_action: what to do when connection socket is active
- * @outqueue: pointer to first outbound message in queue
- * @outqueue_lock: control access to the outqueue
- * @swork: send work item
- */
-struct tipc_conn {
-	struct kref kref;
-	int conid;
-	struct socket *sock;
-	unsigned long flags;
-	struct tipc_server *server;
-	struct list_head sub_list;
-	spinlock_t sub_lock; /* for subscription list */
-	struct work_struct rwork;
-	struct list_head outqueue;
-	spinlock_t outqueue_lock;
-	struct work_struct swork;
-};
-
-/* An entry waiting to be sent */
-struct outqueue_entry {
-	bool inactive;
-	struct tipc_event evt;
-	struct list_head list;
-};
-
-static void tipc_recv_work(struct work_struct *work);
-static void tipc_send_work(struct work_struct *work);
-
-static bool connected(struct tipc_conn *con)
-{
-	return con && test_bit(CF_CONNECTED, &con->flags);
-}
-
-static void tipc_conn_kref_release(struct kref *kref)
-{
-	struct tipc_conn *con = container_of(kref, struct tipc_conn, kref);
-	struct tipc_server *s = con->server;
-	struct outqueue_entry *e, *safe;
-
-	spin_lock_bh(&s->idr_lock);
-	idr_remove(&s->conn_idr, con->conid);
-	s->idr_in_use--;
-	spin_unlock_bh(&s->idr_lock);
-	if (con->sock)
-		sock_release(con->sock);
-
-	spin_lock_bh(&con->outqueue_lock);
-	list_for_each_entry_safe(e, safe, &con->outqueue, list) {
-		list_del(&e->list);
-		kfree(e);
-	}
-	spin_unlock_bh(&con->outqueue_lock);
-	kfree(con);
-}
-
-static void conn_put(struct tipc_conn *con)
-{
-	kref_put(&con->kref, tipc_conn_kref_release);
-}
-
-static void conn_get(struct tipc_conn *con)
-{
-	kref_get(&con->kref);
-}
-
-static struct tipc_conn *tipc_conn_lookup(struct tipc_server *s, int conid)
-{
-	struct tipc_conn *con;
-
-	spin_lock_bh(&s->idr_lock);
-	con = idr_find(&s->conn_idr, conid);
-	if (!connected(con) || !kref_get_unless_zero(&con->kref))
-		con = NULL;
-	spin_unlock_bh(&s->idr_lock);
-	return con;
-}
-
-/* sock_data_ready - interrupt callback indicating the socket has data to read
- * The queued work is launched into tipc_recv_work()->tipc_recv_from_sock()
- */
-static void sock_data_ready(struct sock *sk)
-{
-	struct tipc_conn *con;
-
-	read_lock_bh(&sk->sk_callback_lock);
-	con = sk->sk_user_data;
-	if (connected(con)) {
-		conn_get(con);
-		if (!queue_work(con->server->rcv_wq, &con->rwork))
-			conn_put(con);
-	}
-	read_unlock_bh(&sk->sk_callback_lock);
-}
-
-/* sock_write_space - interrupt callback after a sendmsg EAGAIN
- * Indicates that there now is more space in the send buffer
- * The queued work is launched into tipc_send_work()->tipc_send_to_sock()
- */
-static void sock_write_space(struct sock *sk)
-{
-	struct tipc_conn *con;
-
-	read_lock_bh(&sk->sk_callback_lock);
-	con = sk->sk_user_data;
-	if (connected(con)) {
-		conn_get(con);
-		if (!queue_work(con->server->send_wq, &con->swork))
-			conn_put(con);
-	}
-	read_unlock_bh(&sk->sk_callback_lock);
-}
-
-/* tipc_con_delete_sub - delete a specific or all subscriptions
- * for a given subscriber
- */
-static void tipc_con_delete_sub(struct tipc_conn *con, struct tipc_subscr *s)
-{
-	struct list_head *sub_list = &con->sub_list;
-	struct tipc_net *tn = tipc_net(con->server->net);
-	struct tipc_subscription *sub, *tmp;
-
-	spin_lock_bh(&con->sub_lock);
-	list_for_each_entry_safe(sub, tmp, sub_list, sub_list) {
-		if (!s || !memcmp(s, &sub->evt.s, sizeof(*s))) {
-			tipc_sub_unsubscribe(sub);
-			atomic_dec(&tn->subscription_count);
-		} else if (s) {
-			break;
-		}
-	}
-	spin_unlock_bh(&con->sub_lock);
-}
-
-static void tipc_close_conn(struct tipc_conn *con)
-{
-	struct sock *sk = con->sock->sk;
-	bool disconnect = false;
-
-	write_lock_bh(&sk->sk_callback_lock);
-	disconnect = test_and_clear_bit(CF_CONNECTED, &con->flags);
-
-	if (disconnect) {
-		sk->sk_user_data = NULL;
-		tipc_con_delete_sub(con, NULL);
-	}
-	write_unlock_bh(&sk->sk_callback_lock);
-
-	/* Handle concurrent calls from sending and receiving threads */
-	if (!disconnect)
-		return;
-
-	/* Don't flush pending works, -just let them expire */
-	kernel_sock_shutdown(con->sock, SHUT_RDWR);
-
-	conn_put(con);
-}
-
-static struct tipc_conn *tipc_alloc_conn(struct tipc_server *s)
-{
-	struct tipc_conn *con;
-	int ret;
-
-	con = kzalloc(sizeof(struct tipc_conn), GFP_ATOMIC);
-	if (!con)
-		return ERR_PTR(-ENOMEM);
-
-	kref_init(&con->kref);
-	INIT_LIST_HEAD(&con->outqueue);
-	INIT_LIST_HEAD(&con->sub_list);
-	spin_lock_init(&con->outqueue_lock);
-	spin_lock_init(&con->sub_lock);
-	INIT_WORK(&con->swork, tipc_send_work);
-	INIT_WORK(&con->rwork, tipc_recv_work);
-
-	spin_lock_bh(&s->idr_lock);
-	ret = idr_alloc(&s->conn_idr, con, 0, 0, GFP_ATOMIC);
-	if (ret < 0) {
-		kfree(con);
-		spin_unlock_bh(&s->idr_lock);
-		return ERR_PTR(-ENOMEM);
-	}
-	con->conid = ret;
-	s->idr_in_use++;
-	spin_unlock_bh(&s->idr_lock);
-
-	set_bit(CF_CONNECTED, &con->flags);
-	con->server = s;
-
-	return con;
-}
-
-static int tipc_con_rcv_sub(struct tipc_server *srv,
-			    struct tipc_conn *con,
-			    struct tipc_subscr *s)
-{
-	struct tipc_net *tn = tipc_net(srv->net);
-	struct tipc_subscription *sub;
-
-	if (tipc_sub_read(s, filter) & TIPC_SUB_CANCEL) {
-		tipc_con_delete_sub(con, s);
-		return 0;
-	}
-	if (atomic_read(&tn->subscription_count) >= TIPC_MAX_SUBSCR) {
-		pr_warn("Subscription rejected, max (%u)\n", TIPC_MAX_SUBSCR);
-		return -1;
-	}
-	sub = tipc_sub_subscribe(srv->net, s, con->conid);
-	if (!sub)
-		return -1;
-	atomic_inc(&tn->subscription_count);
-	spin_lock_bh(&con->sub_lock);
-	list_add(&sub->sub_list, &con->sub_list);
-	spin_unlock_bh(&con->sub_lock);
-	return 0;
-}
-
-static int tipc_receive_from_sock(struct tipc_conn *con)
-{
-	struct tipc_server *srv = con->server;
-	struct sock *sk = con->sock->sk;
-	struct msghdr msg = {};
-	struct tipc_subscr s;
-	struct kvec iov;
-	int ret;
-
-	iov.iov_base = &s;
-	iov.iov_len = sizeof(s);
-	msg.msg_name = NULL;
-	iov_iter_kvec(&msg.msg_iter, READ | ITER_KVEC, &iov, 1, iov.iov_len);
-	ret = sock_recvmsg(con->sock, &msg, MSG_DONTWAIT);
-	if (ret == -EWOULDBLOCK)
-		return -EWOULDBLOCK;
-	if (ret > 0) {
-		read_lock_bh(&sk->sk_callback_lock);
-		ret = tipc_con_rcv_sub(srv, con, &s);
-		read_unlock_bh(&sk->sk_callback_lock);
-	}
-	if (ret < 0)
-		tipc_close_conn(con);
-
-	return ret;
-}
-
-/* tipc_conn_queue_evt() - interrupt level call from a subscription instance
- * The queued work is launched into tipc_send_work()->tipc_send_to_sock()
- */
-void tipc_conn_queue_evt(struct net *net, int conid,
-			 u32 event, struct tipc_event *evt)
-{
-	struct tipc_server *srv = tipc_topsrv(net);
-	struct outqueue_entry *e;
-	struct tipc_conn *con;
-
-	con = tipc_conn_lookup(srv, conid);
-	if (!con)
-		return;
-
-	if (!connected(con))
-		goto err;
-
-	e = kmalloc(sizeof(*e), GFP_ATOMIC);
-	if (!e)
-		goto err;
-	e->inactive = (event == TIPC_SUBSCR_TIMEOUT);
-	memcpy(&e->evt, evt, sizeof(*evt));
-	spin_lock_bh(&con->outqueue_lock);
-	list_add_tail(&e->list, &con->outqueue);
-	spin_unlock_bh(&con->outqueue_lock);
-
-	if (queue_work(srv->send_wq, &con->swork))
-		return;
-err:
-	conn_put(con);
-}
-
-bool tipc_topsrv_kern_subscr(struct net *net, u32 port, u32 type, u32 lower,
-			     u32 upper, u32 filter, int *conid)
-{
-	struct tipc_subscr sub;
-	struct tipc_conn *con;
-	int rc;
-
-	sub.seq.type = type;
-	sub.seq.lower = lower;
-	sub.seq.upper = upper;
-	sub.timeout = TIPC_WAIT_FOREVER;
-	sub.filter = filter;
-	*(u32 *)&sub.usr_handle = port;
-
-	con = tipc_alloc_conn(tipc_topsrv(net));
-	if (IS_ERR(con))
-		return false;
-
-	*conid = con->conid;
-	con->sock = NULL;
-	rc = tipc_con_rcv_sub(tipc_topsrv(net), con, &sub);
-	if (rc < 0)
-		tipc_close_conn(con);
-	return !rc;
-}
-
-void tipc_topsrv_kern_unsubscr(struct net *net, int conid)
-{
-	struct tipc_conn *con;
-
-	con = tipc_conn_lookup(tipc_topsrv(net), conid);
-	if (!con)
-		return;
-
-	test_and_clear_bit(CF_CONNECTED, &con->flags);
-	tipc_con_delete_sub(con, NULL);
-	conn_put(con);
-	conn_put(con);
-}
-
-static void tipc_send_kern_top_evt(struct net *net, struct tipc_event *evt)
-{
-	u32 port = *(u32 *)&evt->s.usr_handle;
-	u32 self = tipc_own_addr(net);
-	struct sk_buff_head evtq;
-	struct sk_buff *skb;
-
-	skb = tipc_msg_create(TOP_SRV, 0, INT_H_SIZE, sizeof(*evt),
-			      self, self, port, port, 0);
-	if (!skb)
-		return;
-	msg_set_dest_droppable(buf_msg(skb), true);
-	memcpy(msg_data(buf_msg(skb)), evt, sizeof(*evt));
-	skb_queue_head_init(&evtq);
-	__skb_queue_tail(&evtq, skb);
-	tipc_sk_rcv(net, &evtq);
-}
-
-static void tipc_send_to_sock(struct tipc_conn *con)
-{
-	struct list_head *queue = &con->outqueue;
-	struct tipc_server *srv = con->server;
-	struct outqueue_entry *e;
-	struct tipc_event *evt;
-	struct msghdr msg;
-	struct kvec iov;
-	int count = 0;
-	int ret;
-
-	spin_lock_bh(&con->outqueue_lock);
-
-	while (!list_empty(queue)) {
-		e = list_first_entry(queue, struct outqueue_entry, list);
-		evt = &e->evt;
-		spin_unlock_bh(&con->outqueue_lock);
-
-		if (e->inactive)
-			tipc_con_delete_sub(con, &evt->s);
-
-		memset(&msg, 0, sizeof(msg));
-		msg.msg_flags = MSG_DONTWAIT;
-		iov.iov_base = evt;
-		iov.iov_len = sizeof(*evt);
-		msg.msg_name = NULL;
-
-		if (con->sock) {
-			ret = kernel_sendmsg(con->sock, &msg, &iov,
-					     1, sizeof(*evt));
-			if (ret == -EWOULDBLOCK || ret == 0) {
-				cond_resched();
-				return;
-			} else if (ret < 0) {
-				return tipc_close_conn(con);
-			}
-		} else {
-			tipc_send_kern_top_evt(srv->net, evt);
-		}
-
-		/* Don't starve users filling buffers */
-		if (++count >= MAX_SEND_MSG_COUNT) {
-			cond_resched();
-			count = 0;
-		}
-		spin_lock_bh(&con->outqueue_lock);
-		list_del(&e->list);
-		kfree(e);
-	}
-	spin_unlock_bh(&con->outqueue_lock);
-}
-
-static void tipc_recv_work(struct work_struct *work)
-{
-	struct tipc_conn *con = container_of(work, struct tipc_conn, rwork);
-	int count = 0;
-
-	while (connected(con)) {
-		if (tipc_receive_from_sock(con))
-			break;
-
-		/* Don't flood Rx machine */
-		if (++count >= MAX_RECV_MSG_COUNT) {
-			cond_resched();
-			count = 0;
-		}
-	}
-	conn_put(con);
-}
-
-static void tipc_send_work(struct work_struct *work)
-{
-	struct tipc_conn *con = container_of(work, struct tipc_conn, swork);
-
-	if (connected(con))
-		tipc_send_to_sock(con);
-
-	conn_put(con);
-}
-
-static void tipc_accept_from_sock(struct work_struct *work)
-{
-	struct tipc_server *srv = container_of(work, struct tipc_server, awork);
-	struct socket *lsock = srv->listener;
-	struct socket *newsock;
-	struct tipc_conn *con;
-	struct sock *newsk;
-	int ret;
-
-	while (1) {
-		ret = kernel_accept(lsock, &newsock, O_NONBLOCK);
-		if (ret < 0)
-			return;
-		con = tipc_alloc_conn(srv);
-		if (IS_ERR(con)) {
-			ret = PTR_ERR(con);
-			sock_release(newsock);
-			return;
-		}
-		/* Register callbacks */
-		newsk = newsock->sk;
-		write_lock_bh(&newsk->sk_callback_lock);
-		newsk->sk_data_ready = sock_data_ready;
-		newsk->sk_write_space = sock_write_space;
-		newsk->sk_user_data = con;
-		con->sock = newsock;
-		write_unlock_bh(&newsk->sk_callback_lock);
-
-		/* Wake up receive process in case of 'SYN+' message */
-		newsk->sk_data_ready(newsk);
-	}
-}
-
-/* listener_sock_data_ready - interrupt callback indicating new connection
- * The queued job is launched into tipc_accept_from_sock()
- */
-static void listener_sock_data_ready(struct sock *sk)
-{
-	struct tipc_server *srv;
-
-	read_lock_bh(&sk->sk_callback_lock);
-	srv = sk->sk_user_data;
-	if (srv->listener)
-		queue_work(srv->rcv_wq, &srv->awork);
-	read_unlock_bh(&sk->sk_callback_lock);
-}
-
-static int tipc_create_listener_sock(struct tipc_server *srv)
-{
-	int imp = TIPC_CRITICAL_IMPORTANCE;
-	struct socket *lsock = NULL;
-	struct sockaddr_tipc saddr;
-	struct sock *sk;
-	int rc;
-
-	rc = sock_create_kern(srv->net, AF_TIPC, SOCK_SEQPACKET, 0, &lsock);
-	if (rc < 0)
-		return rc;
-
-	srv->listener = lsock;
-	sk = lsock->sk;
-	write_lock_bh(&sk->sk_callback_lock);
-	sk->sk_data_ready = listener_sock_data_ready;
-	sk->sk_user_data = srv;
-	write_unlock_bh(&sk->sk_callback_lock);
-
-	rc = kernel_setsockopt(lsock, SOL_TIPC, TIPC_IMPORTANCE,
-			       (char *)&imp, sizeof(imp));
-	if (rc < 0)
-		goto err;
-
-	saddr.family	                = AF_TIPC;
-	saddr.addrtype		        = TIPC_ADDR_NAMESEQ;
-	saddr.addr.nameseq.type	        = TIPC_TOP_SRV;
-	saddr.addr.nameseq.lower	= TIPC_TOP_SRV;
-	saddr.addr.nameseq.upper	= TIPC_TOP_SRV;
-	saddr.scope			= TIPC_NODE_SCOPE;
-
-	rc = kernel_bind(lsock, (struct sockaddr *)&saddr, sizeof(saddr));
-	if (rc < 0)
-		goto err;
-	rc = kernel_listen(lsock, 0);
-	if (rc < 0)
-		goto err;
-
-	/* As server's listening socket owner and creator is the same module,
-	 * we have to decrease TIPC module reference count to guarantee that
-	 * it remains zero after the server socket is created, otherwise,
-	 * executing "rmmod" command is unable to make TIPC module deleted
-	 * after TIPC module is inserted successfully.
-	 *
-	 * However, the reference count is ever increased twice in
-	 * sock_create_kern(): one is to increase the reference count of owner
-	 * of TIPC socket's proto_ops struct; another is to increment the
-	 * reference count of owner of TIPC proto struct. Therefore, we must
-	 * decrement the module reference count twice to ensure that it keeps
-	 * zero after server's listening socket is created. Of course, we
-	 * must bump the module reference count twice as well before the socket
-	 * is closed.
-	 */
-	module_put(lsock->ops->owner);
-	module_put(sk->sk_prot_creator->owner);
-
-	return 0;
-err:
-	sock_release(lsock);
-	return -EINVAL;
-}
-
-static int tipc_work_start(struct tipc_server *s)
-{
-	s->rcv_wq = alloc_ordered_workqueue("tipc_rcv", 0);
-	if (!s->rcv_wq) {
-		pr_err("can't start tipc receive workqueue\n");
-		return -ENOMEM;
-	}
-
-	s->send_wq = alloc_ordered_workqueue("tipc_send", 0);
-	if (!s->send_wq) {
-		pr_err("can't start tipc send workqueue\n");
-		destroy_workqueue(s->rcv_wq);
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static void tipc_work_stop(struct tipc_server *s)
-{
-	destroy_workqueue(s->rcv_wq);
-	destroy_workqueue(s->send_wq);
-}
-
-int tipc_topsrv_start(struct net *net)
-{
-	struct tipc_net *tn = tipc_net(net);
-	const char name[] = "topology_server";
-	struct tipc_server *srv;
-	int ret;
-
-	srv = kzalloc(sizeof(*srv), GFP_ATOMIC);
-	if (!srv)
-		return -ENOMEM;
-
-	srv->net = net;
-	srv->max_rcvbuf_size = sizeof(struct tipc_subscr);
-	INIT_WORK(&srv->awork, tipc_accept_from_sock);
-
-	strncpy(srv->name, name, strlen(name) + 1);
-	tn->topsrv = srv;
-	atomic_set(&tn->subscription_count, 0);
-
-	spin_lock_init(&srv->idr_lock);
-	idr_init(&srv->conn_idr);
-	srv->idr_in_use = 0;
-
-	ret = tipc_work_start(srv);
-	if (ret < 0)
-		return ret;
-
-	ret = tipc_create_listener_sock(srv);
-	if (ret < 0)
-		tipc_work_stop(srv);
-
-	return ret;
-}
-
-void tipc_topsrv_stop(struct net *net)
-{
-	struct tipc_server *srv = tipc_topsrv(net);
-	struct socket *lsock = srv->listener;
-	struct tipc_conn *con;
-	int id;
-
-	spin_lock_bh(&srv->idr_lock);
-	for (id = 0; srv->idr_in_use; id++) {
-		con = idr_find(&srv->conn_idr, id);
-		if (con) {
-			spin_unlock_bh(&srv->idr_lock);
-			tipc_close_conn(con);
-			spin_lock_bh(&srv->idr_lock);
-		}
-	}
-	__module_get(lsock->ops->owner);
-	__module_get(lsock->sk->sk_prot_creator->owner);
-	sock_release(lsock);
-	srv->listener = NULL;
-	spin_unlock_bh(&srv->idr_lock);
-	tipc_work_stop(srv);
-	idr_destroy(&srv->conn_idr);
-	kfree(srv);
-}