Status = PciAllocateBusNumber (RootBridgeDev, SubBusNumber, PaddedBusRange, &SubBusNumber);\r
if (EFI_ERROR (Status)) {\r
return Status;\r
Status = PciAllocateBusNumber (RootBridgeDev, SubBusNumber, PaddedBusRange, &SubBusNumber);\r
if (EFI_ERROR (Status)) {\r
return Status;\r