diff options
| author | Junwei Hu <hujunwei4@huawei.com> | 2019-05-20 14:43:59 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-11 12:24:07 +0200 |
| commit | 5bce46edeb723f7e731aa57ca18a723f2adf63f5 (patch) | |
| tree | 1df543360acb55ca01341c72329b6ed837ac431b /net/tipc/subscr.c | |
| parent | 416d252ba926e6d4691d90402cd8cf5043236809 (diff) | |
tipc: fix modprobe tipc failed after switch order of device registration -v2
commit 526f5b851a96566803ee4bee60d0a34df56c77f8 upstream.
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, ...) called by
tipc_topsrv_create_listener() in the initialization process
of tipc_init_net(), so tipc_socket_init() must be execute before that.
Meanwhile, tipc_net_id need to be initialized when sock_create()
called, and tipc_socket_init() is no need to be called for each namespace.
I add a variable tipc_topsrv_net_ops, and split the
register_pernet_subsys() of tipc into two parts, and split
tipc_socket_init() with initialization of pernet params.
By the way, I fixed resources rollback error when tipc_bcast_init()
failed in 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>
Reported-by: syzbot+1e8114b61079bfe9cbc5@syzkaller.appspotmail.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>
Diffstat (limited to 'net/tipc/subscr.c')
| -rw-r--r-- | net/tipc/subscr.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c index 500c9e614a06..4f80f00cd8f9 100644 --- a/net/tipc/subscr.c +++ b/net/tipc/subscr.c @@ -306,7 +306,7 @@ static void *tipc_subscrb_connect_cb(int conid) return (void *)tipc_subscrb_create(conid); } -int tipc_topsrv_start(struct net *net) +static int tipc_topsrv_start(struct net *net) { struct tipc_net *tn = net_generic(net, tipc_net_id); const char name[] = "topology_server"; @@ -344,7 +344,7 @@ int tipc_topsrv_start(struct net *net) return tipc_server_start(topsrv); } -void tipc_topsrv_stop(struct net *net) +static void tipc_topsrv_stop(struct net *net) { struct tipc_net *tn = net_generic(net, tipc_net_id); struct tipc_server *topsrv = tn->topsrv; @@ -353,3 +353,13 @@ void tipc_topsrv_stop(struct net *net) kfree(topsrv->saddr); kfree(topsrv); } + +int __net_init tipc_topsrv_init_net(struct net *net) +{ + return tipc_topsrv_start(net); +} + +void __net_exit tipc_topsrv_exit_net(struct net *net) +{ + tipc_topsrv_stop(net); +} |