!7770 drm/amd/pm: fix a double-free in si_dpm_init

Merge Pull Request from: @ci-robot 
 
PR sync from: Xia Fukun <xiafukun@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/NFOX3XUZ7QZAMGQEIMM76EV6WD5KHCVS/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9Q9IJ 
 
Link:https://gitee.com/openeuler/kernel/pulls/7770

 

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