Giovanni Mascellani (@giomasce) commented about dlls/mfplat/tests/mfplat.c:
+ + hr = IMF2DBuffer_Unlock2D(_2d_buffer); + ok(hr == HRESULT_FROM_WIN32(ERROR_WAS_UNLOCKED), "Unexpected hr %#lx.\n", hr); + + hr = IMFMediaBuffer_Lock(buffer, &data, NULL, NULL); + ok(hr == S_OK, "Unexpected hr %#lx.\n", hr); + + hr = IMF2DBuffer_Lock2D(_2d_buffer, &data, &pitch); + ok(hr == MF_E_UNEXPECTED, "Unexpected hr %#lx.\n", hr); + + hr = IMFMediaBuffer_Unlock(buffer); + ok(hr == S_OK, "Unexpected hr %#lx.\n", hr); + + IMF2DBuffer_Release(_2d_buffer); + + hr = IMFMediaBuffer_QueryInterface(buffer, &IID_IMF2DBuffer2, (void **)&_2dbuffer2); I think you never released it, so you don't need to query again here.
-- https://gitlab.winehq.org/wine/wine/-/merge_requests/11420#note_148320