static long snd_pcm_oss_bytes(snd_pcm_substream_t *substream, long frames)
 {
        snd_pcm_runtime_t *runtime = substream->runtime;
-       snd_pcm_uframes_t buffer_size = snd_pcm_lib_buffer_bytes(substream);
+       long buffer_size = snd_pcm_lib_buffer_bytes(substream);
        long bytes = frames_to_bytes(runtime, frames);
        if (buffer_size == runtime->oss.buffer_bytes)
                return bytes;
 static long snd_pcm_alsa_frames(snd_pcm_substream_t *substream, long bytes)
 {
        snd_pcm_runtime_t *runtime = substream->runtime;
-       snd_pcm_uframes_t buffer_size = snd_pcm_lib_buffer_bytes(substream);
+       long buffer_size = snd_pcm_lib_buffer_bytes(substream);
        if (buffer_size == runtime->oss.buffer_bytes)
                return bytes_to_frames(runtime, bytes);
        return bytes_to_frames(runtime, (buffer_size * bytes) / runtime->oss.buffer_bytes);