[patch 21/21] AMD IOMMU: fix wrong loop counter in free_pagetables

[Greg KH]

2.6.27-stable review patch.  If anyone has any objections, please let us know.

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

From: Joerg Roedel <joerg.roedel@xxxxxxx>

Upstream commit 3cc3d84bffbd93bdb671ac7961b12cd98fbb9266

This fixes a bug which causes the driver to go in an endless loop if
initialization fails and its resources are freed.

Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 arch/x86/kernel/amd_iommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -487,7 +487,7 @@ static void dma_ops_free_pagetable(struc
 			continue;
 
 		p2 = IOMMU_PTE_PAGE(p1[i]);
-		for (j = 0; j < 512; ++i) {
+		for (j = 0; j < 512; ++j) {
 			if (!IOMMU_PTE_PRESENT(p2[j]))
 				continue;
 			p3 = IOMMU_PTE_PAGE(p2[j]);

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