Commit 15177608 authored Oct 29, 2013 by Stefano Stabellini

swiotlb-xen: fix error code returned by xen_swiotlb_map_sg_attrs



map_sg returns the number of elements mapped, not a dma_addr_t.
In case of error return 0, not DMA_ERROR_CODE.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

parent 6b42a7ea

drivers/xen/swiotlb-xen.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -548,7 +548,7 @@ xen_swiotlb_map_sg_attrs(struct device hwdev, struct scatterlist sgl,
		xen_swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir,
		attrs);
		sg_dma_len(sgl) = 0;
		return DMA_ERROR_CODE;
		return 0;
		}
		sg->dma_address = xen_phys_to_bus(map);
		} else {