ole32: CoGetInterfaceAndReleaseStream shouldn't crash when passed a NULL stream.

dlls/ole32/marshal.c

@@ -1815,6 +1815,7 @@ HRESULT WINAPI CoGetInterfaceAndReleaseStream(LPSTREAM pStm, REFIID riid,
 
     TRACE("(%p, %s, %p)\n", pStm, debugstr_guid(riid), ppv);
 
+    if(!pStm) return E_INVALIDARG;
     hres = CoUnmarshalInterface(pStm, riid, ppv);
     IStream_Release(pStm);
     return hres;

dlls/ole32/tests/marshal.c

@@ -2253,6 +2253,15 @@ static void test_marshal_HENHMETAFILE(void)
     HENHMETAFILE_UserFree(&flags, &hemf2);
 }
 
+static void test_CoGetInterfaceAndReleaseStream(void)
+{
+    HRESULT hr;
+    IUnknown *pUnk;
+
+    hr = CoGetInterfaceAndReleaseStream(NULL, &IID_IUnknown, (void**)&pUnk);
+    ok(hr == E_INVALIDARG, "hr %08x\n", hr);
+}
+
 START_TEST(marshal)
 {
     WNDCLASS wndclass;
@@ -2313,6 +2322,8 @@ START_TEST(marshal)
     test_marshal_HGLOBAL();
     test_marshal_HENHMETAFILE();
 
+    test_CoGetInterfaceAndReleaseStream();
+
     CoUninitialize();
     return;