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(parent: 0f2f222) | patch
intel-iommu: Fix intel_iommu_unmap_range() with size 0
authorSheng Yang <[email protected]>
Wed, 8 Jul 2009 10:52:52 +0000 (11:52 +0100)
committerLinus Torvalds <[email protected]>
Wed, 8 Jul 2009 16:35:10 +0000 (09:35 -0700)
commit4b99d3527041bec1abe9903263a3a1b7d2ba0c4a
treec28eb8558d7cdc56607f9eff4c8073928b32d202tree | snapshot
parent0f2f2221b4ad816567394a52643963428fd353cdcommit | diff
intel-iommu: Fix intel_iommu_unmap_range() with size 0

After some API change, intel_iommu_unmap_range() introduced a assumption that
parameter size != 0, otherwise the dma_pte_clean_range() would have a
overflowed argument. But the user like KVM don't have this assumption before,
then some BUG() triggered.

Fix it by ignoring size = 0.

Signed-off-by: Sheng Yang <[email protected]>
Signed-off-by: David Woodhouse <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
drivers/pci/intel-iommu.c diff | blob | history
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