!9285 of: module: add buffer overflow check in of_modalias()

Merge Pull Request from: @ci-robot 
 
PR sync from: "GONG, Ruiqi" <gongruiqi1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/3FC6L4CTDHL2DOC32E4TD4JHWGQQROE7/ 
 
https://gitee.com/src-openeuler/kernel/issues/IA6SDQ 
 
Link:https://gitee.com/openeuler/kernel/pulls/9285

 

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