!3770 ext4: fix uninitialized ratelimit_state->lock access in __ext4_fill_super()

Merge Pull Request from: @ci-robot 
 
PR sync from: Baokun Li <libaokun1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/7ORQNXKZ7SMLR2B6U4DTZXW65QQ3OSQE/ 
 
https://gitee.com/openeuler/kernel/issues/I8TM21 
 
Link:https://gitee.com/openeuler/kernel/pulls/3770

 

Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>