!1884 ipvlan: Fix a reference count leak warning in ipvlan_ns_exit()

Merge Pull Request from: @ci-robot 
 
PR sync from: Lu Wei <luwei32@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/X3HFQC5NFGCVX7OTKDOFURSZFG75IGK2/ 
 
https://gitee.com/openeuler/kernel/issues/I7WB3H 
 
Link:https://gitee.com/openeuler/kernel/pulls/1884

 

Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Liu YongQiang <liuyongqiang13@huawei.com>