diff options
Diffstat (limited to 'MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c index 8a8b4b8fac..0bc1fbfeff 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c @@ -173,6 +173,14 @@ LocateCapabilityRegBlock ( return EFI_SUCCESS;
}
+ //
+ // Certain PCI device may incorrectly have capability pointing to itself,
+ // break to avoid dead loop.
+ //
+ if (CapabilityPtr == (UINT8) (CapabilityEntry >> 8)) {
+ break;
+ }
+
CapabilityPtr = (UINT8) (CapabilityEntry >> 8);
}
|