In the function workload_thread(), we invoke complete_current_workload() to cleanup the just processed workload (workload will be freed there). So we cannot access workload->req after that. This patch move complete_current_workload() afterward. Signed-off-by: Changbin Du <changbin.du@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>