21 	struct sg_table *sg;  member
58 	struct sg_table *sg;  in get_sg_table()  local
61 	sg = kzalloc(sizeof(*sg), GFP_KERNEL);  in get_sg_table()
62 	if (!sg)  in get_sg_table()
64 	ret = sg_alloc_table_from_pages(sg, ubuf->pages, ubuf->pagecount,  in get_sg_table()
69 	ret = dma_map_sgtable(dev, sg, direction, 0);  in get_sg_table()
72 	return sg;  in get_sg_table()
75 	sg_free_table(sg);  in get_sg_table()
76 	kfree(sg);  in get_sg_table()
80 static void put_sg_table(struct device *dev, struct sg_table *sg,  in put_sg_table()  argument
83 	dma_unmap_sgtable(dev, sg, direction, 0);  in put_sg_table()
84 	sg_free_table(sg);  in put_sg_table()
85 	kfree(sg);  in put_sg_table()
95 			  struct sg_table *sg,  in unmap_udmabuf()  argument
98 	return put_sg_table(at->dev, sg, direction);  in unmap_udmabuf()
107 	if (ubuf->sg)  in release_udmabuf()
108 		put_sg_table(dev, ubuf->sg, DMA_BIDIRECTIONAL);  in release_udmabuf()
123 	if (!ubuf->sg) {  in begin_cpu_udmabuf()
124 		ubuf->sg = get_sg_table(dev, buf, direction);  in begin_cpu_udmabuf()
125 		if (IS_ERR(ubuf->sg)) {  in begin_cpu_udmabuf()
126 			ret = PTR_ERR(ubuf->sg);  in begin_cpu_udmabuf()
127 			ubuf->sg = NULL;  in begin_cpu_udmabuf()
130 		dma_sync_sg_for_cpu(dev, ubuf->sg->sgl, ubuf->sg->nents,  in begin_cpu_udmabuf()
143 	if (!ubuf->sg)  in end_cpu_udmabuf()
146 	dma_sync_sg_for_device(dev, ubuf->sg->sgl, ubuf->sg->nents, direction);  in end_cpu_udmabuf()