!3531 Fix kernel panic occurs during ISO installation on the 20.03 SP3/SP4

Merge Pull Request from: @cloudyyy1234 
 
For description	about the feature, see the following issue:
https://gitee.com/openeuler/kernel/issues/I8QL7I


 
 
Link:https://gitee.com/openeuler/kernel/pulls/3531

 

Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>