intel-iommu: Don't keep freeing page zero in dma_pte_free_pagetable()

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Check dma_pte_present() and only free the page if there _is_ one.
Kind of surprising that there was no warning about this.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

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David Woodhouse 2009-07-02 12:02:34 +01:00

parent 75e6bf9638

commit 6a43e574c5

1 changed files with 4 additions and 2 deletions

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drivers/pci/intel-iommu.c

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