swiotlb-xen: pass dev_addr to swiotlb_tbl_unmap_single

Need to pass the pointer within the swiotlb internal buffer to the swiotlb library, that in the case of xen_unmap_single is dev_addr, not paddr. Signed-off-by: Stefano Stabellini <[email protected]> Acked-by: Konrad Rzeszutek Wilk <[email protected]> CC: [email protected]
jimmycarry · Dec 4, 2014 · 2c3fc8d · 2c3fc8d
1 parent 9490c6c
commit 2c3fc8d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
@@ -451,7 +451,7 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
 
 	/* NOTE: We use dev_addr here, not paddr! */
 	if (is_xen_swiotlb_buffer(dev_addr)) {
-		swiotlb_tbl_unmap_single(hwdev, paddr, size, dir);
+		swiotlb_tbl_unmap_single(hwdev, dev_addr, size, dir);
 		return;
 	}