diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
index 030ef42320..a6ade26e3a 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c
@@ -340,6 +340,10 @@ DumpPpbPaddingResource (
   EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
   PCI_BAR_TYPE                      Type;
 
+  if (PciIoDevice->ResourcePaddingDescriptors == NULL) {
+    return;
+  }
+
   if (ResourceType == PciBarTypeIo16 || ResourceType == PciBarTypeIo32) {
     ResourceType = PciBarTypeIo;
   }