diff --git a/media/libsydneyaudio/src/sydney_audio_waveapi.c b/media/libsydneyaudio/src/sydney_audio_waveapi.c
--- a/media/libsydneyaudio/src/sydney_audio_waveapi.c
+++ b/media/libsydneyaudio/src/sydney_audio_waveapi.c
@@ -147,17 +147,17 @@ int sa_stream_create_pcm(sa_stream_t **s
   if (format != SA_PCM_FORMAT_S16_NE) {
     return SA_ERROR_NOT_SUPPORTED;
   }
 
   if (mode != SA_MODE_WRONLY) {
     return SA_ERROR_NOT_SUPPORTED;
   }
 
-  if ((_s = (sa_stream_t*)malloc(sizeof(sa_stream_t))) == NULL) {
+  if ((_s = (sa_stream_t*)calloc(1, sizeof(sa_stream_t))) == NULL) {
     return SA_ERROR_OOM;
   }
    
   _s->rwMode = mode;
   _s->format = format;
   _s->rate = rate;
   _s->channels = nchannels;
   _s->deviceName = DEFAULT_DEVICE_NAME;