fault_reason == ARRAY_SIZE(irq_remap_fault_reasons) + 0x20 - 0x20 is one
past the end of the array.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 5ef65cf..9390f3f 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -1057,7 +1057,7 @@ static const char *irq_remap_fault_reasons[] =
const char *dmar_get_fault_reason(u8 fault_reason, int *fault_type)
{
- if (fault_reason >= 0x20 && (fault_reason <= 0x20 +
+ if (fault_reason >= 0x20 && (fault_reason < 0x20 +
ARRAY_SIZE(irq_remap_fault_reasons))) {
*fault_type = INTR_REMAP;
return irq_remap_fault_reasons[fault_reason - 0x20];
--
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