diff --git a/reactos/drivers/bus/acpi/main.c b/reactos/drivers/bus/acpi/main.c
index afc9a1f2e4f..32b74c5d496 100644
--- a/reactos/drivers/bus/acpi/main.c
+++ b/reactos/drivers/bus/acpi/main.c
@@ -450,7 +450,7 @@ GetProcessorInformation(VOID)
     LPWSTR ProcessorVendorIdentifier = NULL;
     LPWSTR HardwareIdsBuffer = NULL;
     HANDLE ProcessorHandle = NULL;
-    ULONG Length, Level1Length = 0, Level2Length = 0, Level3Length = 0;
+    ULONG Length = 0, Level1Length = 0, Level2Length = 0, Level3Length = 0;
     SIZE_T HardwareIdsLength = 0;
     SIZE_T VendorIdentifierLength;
     ULONG i;
diff --git a/reactos/drivers/bus/pcix/fdo.c b/reactos/drivers/bus/pcix/fdo.c
index 77698b288ea..6d6e84e26fd 100644
--- a/reactos/drivers/bus/pcix/fdo.c
+++ b/reactos/drivers/bus/pcix/fdo.c
@@ -478,6 +478,8 @@ PciAddDevice(IN PDRIVER_OBJECT DriverObject,
     AttachedTo = NULL;
     FdoExtension = NULL;
     PdoExtension = NULL;
+    DeviceObject = NULL;
+
     do
     {
         /* Check if there's already a device extension for this bus */