The NT DLL Loader: reentrancy - play along at home!

Anyone care to hazard a guess about what happens if you have the following code in your DllMain()?  Ignore the leak and the lack of error checking; focus on the what the loader's behavior has to be...

BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD fdwReason, LPVOID lpvReserved) {
    switch (fdwReason) {
        SOME_FUNCTION_PTR_T pfn = (SOME_FUNCTION_PTR_T) GetProcAddress(LoadLibraryW(L"SomeOther.DLL"), "SomeFunction");
        if (pfn != NULL) (*pfn)();
    return TRUE;

The answer is actually relatively straightforward (the tricky bit is what is GetProcAddress()'s implied contract).  I'll do exposition tomorrow.  For extra credit, consider what the effect of the leak and lack of error checking is on the loader's internal data tables...