diff --git a/reactos/drivers/test/kmtest/deviface.c b/reactos/drivers/test/kmtest/deviface.c
index af9352121c9..7282c1a3939 100644
--- a/reactos/drivers/test/kmtest/deviface.c
+++ b/reactos/drivers/test/kmtest/deviface.c
@@ -89,11 +89,11 @@ ReactOS_IoGetDeviceInterfaces(
    HANDLE SubKey;
    HANDLE SymbolicLinkKey;
    PKEY_FULL_INFORMATION fip;
-   PKEY_FULL_INFORMATION bfip;
+   PKEY_FULL_INFORMATION bfip=NULL;
    PKEY_BASIC_INFORMATION bip;
-   PKEY_VALUE_PARTIAL_INFORMATION vpip;
+   PKEY_VALUE_PARTIAL_INFORMATION vpip=NULL;
    PWCHAR SymLinkList = NULL;
-   ULONG SymLinkListSize;
+   ULONG SymLinkListSize = 0;
    NTSTATUS Status;
    ULONG Size = 0;
    ULONG i = 0;