s->dma_dac.hwptr = s->dma_dac.swptr = hwptr;
spin_unlock_irqrestore(&s->lock, flags);
remove_wait_queue(&s->dma_dac.wait, &wait);
s->dma_dac.hwptr = s->dma_dac.swptr = hwptr;
spin_unlock_irqrestore(&s->lock, flags);
remove_wait_queue(&s->dma_dac.wait, &wait);