MdeModulePkg/PciHostBridgeDxe: Fix a Base/Limit comparing bug

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / PciHostBridgeDxe / PciHostBridge.c

diff --git a/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c b/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c
index 50f1407e7aeac57783a9183e380da08d8a4248bf..07ed54b08e1305d47f85226e1e5f6dd02c0210c8 100644 (file)
--- a/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c
+++ b/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridge.c
@@ -393,7 +393,7 @@ InitializePciHostBridge (
       continue;\r
     }\r
 \r
-    if (RootBridges[Index].Io.Limit > RootBridges[Index].Io.Base) {\r
+    if (RootBridges[Index].Io.Base <= RootBridges[Index].Io.Limit) {\r
       Status = AddIoSpace (\r
                  RootBridges[Index].Io.Base,\r
                  RootBridges[Index].Io.Limit - RootBridges[Index].Io.Base + 1\r
@@ -413,7 +413,7 @@ InitializePciHostBridge (
     MemApertures[3] = &RootBridges[Index].PMemAbove4G;\r
 \r
     for (MemApertureIndex = 0; MemApertureIndex < sizeof (MemApertures) / sizeof (MemApertures[0]); MemApertureIndex++) {\r
-      if (MemApertures[MemApertureIndex]->Limit > MemApertures[MemApertureIndex]->Base) {\r
+      if (MemApertures[MemApertureIndex]->Base <= MemApertures[MemApertureIndex]->Limit) {\r
         Status = AddMemoryMappedIoSpace (\r
                    MemApertures[MemApertureIndex]->Base,\r
                    MemApertures[MemApertureIndex]->Limit - MemApertures[MemApertureIndex]->Base + 1,\r