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tipc: fix modprobe tipc failed after switch order of device registration

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[ Upstream commit 532b0f7ece4cb2ffd24dc723ddf55242d1188e5e ]

Error message printed:
modprobe: ERROR: could not insert 'tipc': Address family not
supported by protocol.
when modprobe tipc after the following patch: switch order of
device registration, commit 7e27e8d6130c
("tipc: switch order of device registration to fix a crash")

Because sock_create_kern(net, AF_TIPC, ...) is called by
tipc_topsrv_create_listener() in the initialization process
of tipc_net_ops, tipc_socket_init() must be execute before that.

I move tipc_socket_init() into function tipc_init_net().

Fixes: 7e27e8d6130c
("tipc: switch order of device registration to fix a crash")
Signed-off-by: Junwei Hu <hujunwei4@huawei.com>
Reported-by: Wang Wang <wangwang2@huawei.com>
Reviewed-by: Kang Zhou <zhoukang7@huawei.com>
Reviewed-by: Suanming Mou <mousuanming@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Junwei Hu 2019-05-17 19:27:34 +08:00 • committed by Greg Kroah-Hartman
parent ff69bb4be6
commit 65d14634b6
1 changed files with 7 additions and 7 deletions
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14
net/tipc/core.c
View file

@ -61,6 +61,10 @@ static int __net_init tipc_init_net(struct net *net)
INIT_LIST_HEAD(&tn->node_list);
spin_lock_init(&tn->node_list_lock);
err = tipc_socket_init();
if (err)
goto out_socket;
err = tipc_sk_rht_init(net);
if (err)
goto out_sk_rht;
@ -87,6 +91,8 @@ out_subscr:
out_nametbl:
tipc_sk_rht_destroy(net);
out_sk_rht:
tipc_socket_stop();
out_socket:
return err;
}
@ -97,6 +103,7 @@ static void __net_exit tipc_exit_net(struct net *net)
tipc_bcast_stop(net);
tipc_nametbl_stop(net);
tipc_sk_rht_destroy(net);
tipc_socket_stop();
}
static struct pernet_operations tipc_net_ops = {
@ -134,10 +141,6 @@ static int __init tipc_init(void)
if (err)
goto out_pernet;
err = tipc_socket_init();
if (err)
goto out_socket;
err = tipc_bearer_setup();
if (err)
goto out_bearer;
@ -145,8 +148,6 @@ static int __init tipc_init(void)
pr_info("Started in single node mode\n");
return 0;
out_bearer:
tipc_socket_stop();
out_socket:
unregister_pernet_subsys(&tipc_net_ops);
out_pernet:
tipc_unregister_sysctl();
@ -162,7 +163,6 @@ out_netlink:
static void __exit tipc_exit(void)
{
tipc_bearer_cleanup();
tipc_socket_stop();
unregister_pernet_subsys(&tipc_net_ops);
tipc_netlink_stop();
tipc_netlink_compat_stop();