How pass a UNICODE_STRING to a function that expect PUNICODE_STRING?

[FLASHCODER]

I'm trying pass a directory path as UNICODE_STRING to a function that expect a PUNICODE_STRING, but this is failing.

Some idea to fix it?.

NTSTATUS EnumFiles(PUNICODE_STRING szPath)
{

UNICODE_STRING uAllocatedBufferName = RTL_CONSTANT_STRING(szPath);

OBJECT_ATTRIBUTES ObjAttributes;

InitializeObjectAttributes(&ObjAttributes,
&uAllocatedBufferName,
OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
NULL, NULL);

}

// usage on DriverEntry():

UNICODE_STRING usDirectory;

RtlInitUnicodeString(&usDirectory,
L"\\??\\C:\\Program Files\\Foo");

EnumFiles(&usDirectory);

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