list_for_each_entry_safe(child, next, &sdesc->tx_list, node) {
chan->desc_free_cnt++;
list_move_tail(&child->node, &chan->free_list);
list_for_each_entry_safe(child, next, &sdesc->tx_list, node) {
chan->desc_free_cnt++;
list_move_tail(&child->node, &chan->free_list);