diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index df10d23..b2d0a72 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -2018,7 +2018,8 @@
         }
 
         track = new Track(this, client, streamType, sampleRate, format,
-                          channelMask, frameCount, NULL, sharedBuffer,
+                          channelMask, frameCount,
+                          nullptr /* buffer */, (size_t)0 /* bufferSize */, sharedBuffer,
                           sessionId, uid, *flags, TrackBase::TYPE_DEFAULT, portId);
 
         lStatus = track != 0 ? track->initCheck() : (status_t) NO_MEMORY;
@@ -6700,7 +6701,8 @@
         Mutex::Autolock _l(mLock);
 
         track = new RecordTrack(this, client, sampleRate,
-                      format, channelMask, frameCount, NULL, sessionId, uid,
+                      format, channelMask, frameCount,
+                      nullptr /* buffer */, (size_t)0 /* bufferSize */, sessionId, uid,
                       *flags, TrackBase::TYPE_DEFAULT, portId);
 
         lStatus = track->initCheck();