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-rw-r--r--MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c4
1 files changed, 4 insertions, 0 deletions
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;
}