Merge change 20739

* changes:
  Fix issue 2045983 ToneGenerator: fix void statement.
diff --git a/media/libmedia/ToneGenerator.cpp b/media/libmedia/ToneGenerator.cpp
index 3ea64ae..799c349 100644
--- a/media/libmedia/ToneGenerator.cpp
+++ b/media/libmedia/ToneGenerator.cpp
@@ -914,7 +914,7 @@
                 }
             }
         } else {
-            mState == TONE_IDLE;
+            mState = TONE_IDLE;
         }
     } else {
         LOGV("Delayed start\n");