diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 8eb1269..7bb154e 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -817,8 +817,7 @@
     sp<MediaPlayerBase> p = getPlayer();
     if (p == 0) return UNKNOWN_ERROR;
 
-    sp<IBinder> binder(bufferProducer == NULL ? NULL :
-            bufferProducer->asBinder());
+    sp<IBinder> binder(IInterface::asBinder(bufferProducer));
     if (mConnectedWindowBinder == binder) {
         return OK;
     }