!3052 mpam: Fix uninitialized value

Merge Pull Request from: @ci-robot 
 
PR sync from: Yu Liao <liaoyu15@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/J3Q2CJGV3PZBJQIUG25WOKO275VRCFVD/ 
 
https://gitee.com/openeuler/kernel/issues/I7ZRRD 
 
Link:https://gitee.com/openeuler/kernel/pulls/3052

 

Reviewed-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>