Fix possible array overflow:
drivers/pci/intel-iommu.c: In function ʽdmar_get_fault_reasonʼ:
drivers/pci/intel-iommu.c:753: warning: array subscript is above array bounds
drivers/pci/intel-iommu.c: In function ʽiommu_page_faultʼ:
drivers/pci/intel-iommu.c:753: warning: array subscript is above array bounds
Signed-off-by: Takashi Iwai <[email protected]>
---
drivers/pci/intel-iommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index b3d7031..e4b0a0d 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -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];
}
-
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