NTB: Fix range check on memory window index

The range check must exclude the upper bound. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
mariux64 · Sep 7, 2015 · 9a07826 · 9a07826
1 parent 2aa2a77
commit 9a07826
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c
@@ -240,7 +240,7 @@ static inline int ndev_ignore_unsafe(struct intel_ntb_dev *ndev,
 
 static int ndev_mw_to_bar(struct intel_ntb_dev *ndev, int idx)
 {
-	if (idx < 0 || idx > ndev->mw_count)
+	if (idx < 0 || idx >= ndev->mw_count)
 		return -EINVAL;
 	return ndev->reg->mw_bar[idx];
 }