Re: [PATCH v3 0/2] MR9125: mfmediaengine: Suppport TransferVideoFrame() to IWICBitmap.

[Nikolay Sivov (＠nsivov)]

Nikolay Sivov (@nsivov) commented about dlls/mfmediaengine/main.c:
> -
>    WARN("Unexpected source length %lu.\n", current_length);
> -
>    hr = MF_E_UNEXPECTED;
> -
>    goto done_unlock_dst;
> - }
> -
> - src_stride = frame_width * format_size;
> - src += src_rect.top * src_stride + src_rect.left * format_size;
> - MFCopyImage(dst, dst_stride, src, src_stride, dst_stride, wic_rect.Height);
> -
> - IMFMediaBuffer_Unlock(media_buffer);
> -
>
> +done_unlock_dst:
> - IWICBitmapLock_Release(lock);
>
> +done:
> - IMFMediaBuffer_Release(media_buffer);
> - return hr;

Could we replace this with a single goto, checking for null 'lock' instead?