690 				       struct snd_dma_sg_fallback *sgbuf)  in __snd_dma_sg_fallback_free()  argument
695 	if (sgbuf->pages && sgbuf->npages) {  in __snd_dma_sg_fallback_free()
697 		while (i < sgbuf->count) {  in __snd_dma_sg_fallback_free()
698 			size = sgbuf->npages[i];  in __snd_dma_sg_fallback_free()
701 			do_free_pages(page_address(sgbuf->pages[i]),  in __snd_dma_sg_fallback_free()
706 	kvfree(sgbuf->pages);  in __snd_dma_sg_fallback_free()
707 	kvfree(sgbuf->npages);  in __snd_dma_sg_fallback_free()
708 	kfree(sgbuf);  in __snd_dma_sg_fallback_free()
715 	struct snd_dma_sg_fallback *sgbuf;  in snd_dma_sg_fallback_alloc()  local
722 	sgbuf = kzalloc(sizeof(*sgbuf), GFP_KERNEL);  in snd_dma_sg_fallback_alloc()
723 	if (!sgbuf)  in snd_dma_sg_fallback_alloc()
726 	sgbuf->count = size >> PAGE_SHIFT;  in snd_dma_sg_fallback_alloc()
727 	sgbuf->pages = kvcalloc(sgbuf->count, sizeof(*sgbuf->pages), GFP_KERNEL);  in snd_dma_sg_fallback_alloc()
728 	sgbuf->npages = kvcalloc(sgbuf->count, sizeof(*sgbuf->npages), GFP_KERNEL);  in snd_dma_sg_fallback_alloc()
729 	if (!sgbuf->pages || !sgbuf->npages)  in snd_dma_sg_fallback_alloc()
732 	pagep = sgbuf->pages;  in snd_dma_sg_fallback_alloc()
749 		sgbuf->npages[idx] = npages;  in snd_dma_sg_fallback_alloc()
756 	if (sg_alloc_table_from_pages(&sgbuf->sgt, sgbuf->pages, sgbuf->count,  in snd_dma_sg_fallback_alloc()
757 				      0, sgbuf->count << PAGE_SHIFT, GFP_KERNEL))  in snd_dma_sg_fallback_alloc()
760 	if (dma_map_sgtable(dmab->dev.dev, &sgbuf->sgt, DMA_BIDIRECTIONAL, 0))  in snd_dma_sg_fallback_alloc()
763 	p = vmap(sgbuf->pages, sgbuf->count, VM_MAP, PAGE_KERNEL);  in snd_dma_sg_fallback_alloc()
767 	dmab->private_data = sgbuf;  in snd_dma_sg_fallback_alloc()
773 	dma_unmap_sgtable(dmab->dev.dev, &sgbuf->sgt, DMA_BIDIRECTIONAL, 0);  in snd_dma_sg_fallback_alloc()
775 	sg_free_table(&sgbuf->sgt);  in snd_dma_sg_fallback_alloc()
777 	__snd_dma_sg_fallback_free(dmab, sgbuf);  in snd_dma_sg_fallback_alloc()
783 	struct snd_dma_sg_fallback *sgbuf = dmab->private_data;  in snd_dma_sg_fallback_free()  local
786 	dma_unmap_sgtable(dmab->dev.dev, &sgbuf->sgt, DMA_BIDIRECTIONAL, 0);  in snd_dma_sg_fallback_free()
787 	sg_free_table(&sgbuf->sgt);  in snd_dma_sg_fallback_free()
794 	struct snd_dma_sg_fallback *sgbuf = dmab->private_data;  in snd_dma_sg_fallback_mmap()  local
798 	return vm_map_pages(area, sgbuf->pages, sgbuf->count);  in snd_dma_sg_fallback_mmap()