diff --git a/services/audioflinger/AudioMixer.h b/services/audioflinger/AudioMixer.h
index 75c9170..6f31c5d 100644
--- a/services/audioflinger/AudioMixer.h
+++ b/services/audioflinger/AudioMixer.h
@@ -81,10 +81,10 @@
     status_t    enable(int name);
     status_t    disable(int name);
 
-    status_t    setActiveTrack(int track);
+    void        setActiveTrack(int track);
     status_t    setParameter(int target, int name, void *value);
 
-    status_t    setBufferProvider(AudioBufferProvider* bufferProvider);
+    void        setBufferProvider(AudioBufferProvider* bufferProvider);
     void        process();
 
     uint32_t    trackNames() const { return mTrackNames; }