Add a null check to handle failure of android::createPlayer

Change-Id: Id56bd0c16104e46d8dc71f13d8a44aefe251fad4
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 8630ec1..2051b3b 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -687,7 +687,9 @@
         p = android::createPlayer(playerType, this, notify);
     }
 
-    p->setUID(mUID);
+    if (p != NULL) {
+        p->setUID(mUID);
+    }
 
     return p;
 }