Move wakelock release to handleMessage

There were certain code paths in handleDockStateChange() that were
exiting without releasing the wakelock. So we move the release to the
calling function to prevent stray held wakelocks.

Bug: 16841895

Change-Id: I8ae4d2ab8f775c42a893d3bcdef34321c5f631a6
Signed-off-by: Prashant Malani <pmalani@google.com>

Author: Prashant Malani

services/core/java/com/android/server/DockObserver.java

@@ -201,9 +201,6 @@ private void handleDockStateChange() {
             // There are many components in the system watching for this so as to
             // adjust audio routing, screen orientation, etc.
             getContext().sendStickyBroadcastAsUser(intent, UserHandle.ALL);
-
-            // Release the wake lock that was acquired when the message was posted.
-            mWakeLock.release();
         }
     }
 
@@ -213,6 +210,7 @@ public void handleMessage(Message msg) {
             switch (msg.what) {
                 case MSG_DOCK_STATE_CHANGED:
                     handleDockStateChange();
+                    mWakeLock.release();
                     break;
             }
         }