Lines Matching defs:buf
368 struct snd_dma_buffer *buf = &substream->dma_buffer;
371 buf->dev.type = SNDRV_DMA_TYPE_DEV;
372 buf->dev.dev = pcm->card->dev;
373 buf->private_data = NULL;
375 buf->area = dma_alloc_wc(pcm->card->dev,
376 size, &buf->addr,
378 if (!buf->area)
380 buf->bytes = size;
426 struct snd_dma_buffer *buf;
433 buf = &substream->dma_buffer;
434 if (!buf->area)
436 dma_free_wc(pcm->card->dev, buf->bytes,
437 buf->area, buf->addr);
438 buf->area = NULL;