270 	struct saa7134_dmasound *dma = &dev->dmasound;  in saa7134_alsa_dma_init()  local
274 	dma->vaddr = vmalloc_32(nr_pages << PAGE_SHIFT);  in saa7134_alsa_dma_init()
275 	if (NULL == dma->vaddr) {  in saa7134_alsa_dma_init()
281 				(unsigned long)dma->vaddr,  in saa7134_alsa_dma_init()
284 	memset(dma->vaddr, 0, nr_pages << PAGE_SHIFT);  in saa7134_alsa_dma_init()
285 	dma->nr_pages = nr_pages;  in saa7134_alsa_dma_init()
287 	dma->sglist = vzalloc(dma->nr_pages * sizeof(*dma->sglist));  in saa7134_alsa_dma_init()
288 	if (NULL == dma->sglist)  in saa7134_alsa_dma_init()
291 	sg_init_table(dma->sglist, dma->nr_pages);  in saa7134_alsa_dma_init()
292 	for (i = 0; i < dma->nr_pages; i++) {  in saa7134_alsa_dma_init()
293 		pg = vmalloc_to_page(dma->vaddr + i * PAGE_SIZE);  in saa7134_alsa_dma_init()
296 		sg_set_page(&dma->sglist[i], pg, PAGE_SIZE, 0);  in saa7134_alsa_dma_init()
301 	vfree(dma->sglist);  in saa7134_alsa_dma_init()
302 	dma->sglist = NULL;  in saa7134_alsa_dma_init()
304 	vfree(dma->vaddr);  in saa7134_alsa_dma_init()
305 	dma->vaddr = NULL;  in saa7134_alsa_dma_init()
311 	struct saa7134_dmasound *dma = &dev->dmasound;  in saa7134_alsa_dma_map()  local
313 	dma->sglen = dma_map_sg(&dev->pci->dev, dma->sglist,  in saa7134_alsa_dma_map()
314 			dma->nr_pages, PCI_DMA_FROMDEVICE);  in saa7134_alsa_dma_map()
316 	if (0 == dma->sglen) {  in saa7134_alsa_dma_map()
325 	struct saa7134_dmasound *dma = &dev->dmasound;  in saa7134_alsa_dma_unmap()  local
327 	if (!dma->sglen)  in saa7134_alsa_dma_unmap()
330 	dma_unmap_sg(&dev->pci->dev, dma->sglist, dma->sglen, PCI_DMA_FROMDEVICE);  in saa7134_alsa_dma_unmap()
331 	dma->sglen = 0;  in saa7134_alsa_dma_unmap()
335 static int saa7134_alsa_dma_free(struct saa7134_dmasound *dma)  in saa7134_alsa_dma_free()  argument
337 	vfree(dma->sglist);  in saa7134_alsa_dma_free()
338 	dma->sglist = NULL;  in saa7134_alsa_dma_free()
339 	vfree(dma->vaddr);  in saa7134_alsa_dma_free()
340 	dma->vaddr = NULL;  in saa7134_alsa_dma_free()
573 		(dev->dmasound.pt.dma >> 12);  in snd_card_saa7134_capture_prepare()