!5520 scsi: lpfc: Fix a possible data race in lpfc_unregister_fcf_rescan()

Merge Pull Request from: @ci-robot 
 
PR sync from: Li Lingfeng <lilingfeng3@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/DTNBKGXWOUP6YY5OHDYTTIJUO222HW4P/ 
 
https://gitee.com/src-openeuler/kernel/issues/I917LZ 
 
Link:https://gitee.com/openeuler/kernel/pulls/5520

 

Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Reviewed-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>