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intel-iommu: Fix array overflow

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Fix possible array overflow:

drivers/pci/intel-iommu.c: In function ¡dmar_get_fault_reason¢:
drivers/pci/intel-iommu.c:753: warning: array subscript is above array bounds
drivers/pci/intel-iommu.c: In function ¡iommu_page_fault¢:
drivers/pci/intel-iommu.c:753: warning: array subscript is above array bounds

Signed-off-by: Takashi Iwai <[email protected]>
Cc: Mark Gross <[email protected]>
Acked-by: "Keshavamurthy, Anil S" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Takashi Iwai 2007-10-29 14:37:22 -07:00 • committed by Linus Torvalds
commit 10e27ed4ba
1 changed files with 2 additions and 2 deletions
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4
drivers/pci/intel-iommu.c
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@ -749,8 +749,8 @@ static char *fault_reason_strings[] =
char *dmar_get_fault_reason(u8 fault_reason)
{
if (fault_reason > MAX_FAULT_REASON_IDX)
return fault_reason_strings[MAX_FAULT_REASON_IDX];
if (fault_reason >= MAX_FAULT_REASON_IDX)
return fault_reason_strings[MAX_FAULT_REASON_IDX - 1];
else
return fault_reason_strings[fault_reason];
}