3.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Joerg Roedel <redacted>

commit fcd0861db1cf4e6ed99f60a815b7b72c2ed36ea4 upstream.

The shift direction was wrong because the function takes a
page number and i is the address is the loop.

Signed-off-by: Joerg Roedel <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/iommu/amd_iommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c

@@ -1283,7 +1283,7 @@ static int alloc_new_range(struct dma_op
 		if (!pte || !IOMMU_PTE_PRESENT(*pte))
 			continue;
 
-		dma_ops_reserve_addresses(dma_dom, i << PAGE_SHIFT, 1);
+		dma_ops_reserve_addresses(dma_dom, i >> PAGE_SHIFT, 1);
 	}
 
 	update_domain(&dma_dom->domain);