Lines Matching defs:buf
251 struct snd_dma_buffer *buf = &substream->dma_buffer;
254 buf->dev.type = SNDRV_DMA_TYPE_DEV;
255 buf->dev.dev = pcm->card->dev;
256 buf->area = dma_alloc_coherent(pcm->card->dev, size,
257 &buf->addr, GFP_KERNEL);
258 if (!buf->area)
260 buf->bytes = size;
261 buf->private_data = NULL;
298 struct snd_dma_buffer *buf;
305 buf = &substream->dma_buffer;
306 if (!buf->area)
309 dma_free_coherent(pcm->card->dev, buf->bytes,
310 buf->area, buf->addr);
311 buf->area = NULL;