libnvdimm/altmap: Track namespace boundaries in altmap

[linux-2.6-block.git] / drivers / iommu / amd_iommu.c

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 73740b969e62461d5f2b73204899225a048e3a94..b607a92791d3f8b48a9c1caeaea48986753ead64 100644 (file)
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2533,7 +2533,7 @@ static int map_sg(struct device *dev, struct scatterlist *sglist,
        npages = sg_num_pages(dev, sglist, nelems);
 
        address = dma_ops_alloc_iova(dev, dma_dom, npages, dma_mask);
-       if (address == DMA_MAPPING_ERROR)
+       if (!address)
                goto out_err;
 
        prot = dir2prot(direction);