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Merge git://git.infradead.org/iommu-2.6

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* git://git.infradead.org/iommu-2.6:
  intel-iommu: Avoid panic() for DRHD at address zero.
  Intel-IOMMU Alignment Issue in dma_pte_clear_range()
This commit is contained in:
Linus Torvalds
2009-04-13 11:35:50 -07:00
parent b8256b45d1 e523b38e2f
commit 7b11428d37
2 changed files with 12 additions and 3 deletions
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4
drivers/pci/intel-iommu.c
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@@ -733,8 +733,8 @@ static void dma_pte_clear_range(struct dmar_domain *domain, u64 start, u64 end)
start &= (((u64)1) << addr_width) - 1;
end &= (((u64)1) << addr_width) - 1;
/* in case it's partial page */
start = PAGE_ALIGN(start);
end &= PAGE_MASK;
start &= PAGE_MASK;
end = PAGE_ALIGN(end);
npages = (end - start) / VTD_PAGE_SIZE;
/* we don't need lock here, nobody else touches the iova range */