• Junwei Hu's avatar
    tipc: fix modprobe tipc failed after switch order of device registration · 526f5b85
    Junwei Hu authored
    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 7e27e8d6
    ("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: 7e27e8d6 ("tipc: switch order of device registration to fix a crash")
    Signed-off-by: default avatarJunwei Hu <hujunwei4@huawei.com>
    Reported-by: default avatarWang Wang <wangwang2@huawei.com>
    Reported-by: syzbot+1e8114b61079bfe9cbc5@syzkaller.appspotmail.com
    Reviewed-by: default avatarKang Zhou <zhoukang7@huawei.com>
    Reviewed-by: default avatarSuanming Mou <mousuanming@huawei.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    526f5b85
topsrv.c 18.1 KB