320 	struct vb2_dc_attachment *attach;  in vb2_dc_dmabuf_ops_attach()  local
327 	attach = kzalloc(sizeof(*attach), GFP_KERNEL);  in vb2_dc_dmabuf_ops_attach()
328 	if (!attach)  in vb2_dc_dmabuf_ops_attach()
331 	sgt = &attach->sgt;  in vb2_dc_dmabuf_ops_attach()
337 		kfree(attach);  in vb2_dc_dmabuf_ops_attach()
349 	attach->dma_dir = DMA_NONE;  in vb2_dc_dmabuf_ops_attach()
350 	dbuf_attach->priv = attach;  in vb2_dc_dmabuf_ops_attach()
358 	struct vb2_dc_attachment *attach = db_attach->priv;  in vb2_dc_dmabuf_ops_detach()  local
361 	if (!attach)  in vb2_dc_dmabuf_ops_detach()
364 	sgt = &attach->sgt;  in vb2_dc_dmabuf_ops_detach()
367 	if (attach->dma_dir != DMA_NONE)  in vb2_dc_dmabuf_ops_detach()
374 		dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir,  in vb2_dc_dmabuf_ops_detach()
377 	kfree(attach);  in vb2_dc_dmabuf_ops_detach()
384 	struct vb2_dc_attachment *attach = db_attach->priv;  in vb2_dc_dmabuf_ops_map()  local
387 	sgt = &attach->sgt;  in vb2_dc_dmabuf_ops_map()
389 	if (attach->dma_dir == dma_dir)  in vb2_dc_dmabuf_ops_map()
393 	if (attach->dma_dir != DMA_NONE) {  in vb2_dc_dmabuf_ops_map()
394 		dma_unmap_sgtable(db_attach->dev, sgt, attach->dma_dir,  in vb2_dc_dmabuf_ops_map()
396 		attach->dma_dir = DMA_NONE;  in vb2_dc_dmabuf_ops_map()
409 	attach->dma_dir = dma_dir;  in vb2_dc_dmabuf_ops_map()
462 	.attach = vb2_dc_dmabuf_ops_attach,