There are two changes including:
- move input parameter before output parameter;
- change signed int to unsigned int;

Feature or Bugfix:Bugfix
Signed-off-by: Nchenxiang (M) <chenxiang66@hisilicon.com>
Reviewed-by: Nhuangdaode <huangdaode@hisilicon.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>