| commit | 4b99d3527041bec1abe9903263a3a1b7d2ba0c4a | |
| author | Sheng Yang <sheng@linux.intel.com> | |
| Wed, 8 Jul 2009 10:52:52 +0000 (8 11:52 +0100) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Wed, 8 Jul 2009 16:35:10 +0000 (8 09:35 -0700) | ||
| tree | c28eb8558d7cdc56607f9eff4c8073928b32d202 | treesnapshot (tar.gz zip) |
| parent | 0f2f2221b4ad816567394a52643963428fd353cd | commitdiff |
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 <sheng@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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 <sheng@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| drivers/pci/intel-iommu.c | diffblobblamehistory |