dc_container_id
if (sink->dc_container_id) {
kfree(sink->dc_container_id);
sink->dc_container_id = NULL;
sink->dc_container_id = NULL;
if (dc_sink_data->dc_container_id != NULL) {
struct dc_container_id *dc_container_id = dc_sink_data->dc_container_id;
stream->audio_info.port_id[0] = dc_container_id->portId[0];
stream->audio_info.port_id[1] = dc_container_id->portId[1];
struct dc_container_id *dc_container_id;