!10479 jffs2: Fix potential illegal address access in jffs2_free_inode

Merge Pull Request from: @ci-robot 
 
PR sync from: Wang Zhaolong <wangzhaolong1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/RKJVFKK3JL5KBR26IXH4JB2ARTPLGCW2/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAGS1R 
 
Link:https://gitee.com/openeuler/kernel/pulls/10479

 

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