Merge "Add null check before finish SystemUI Tuner's activity"

am: 5bb91bacc3

Change-Id: I0e9d19f297c158ff0c6acd1aa6665e3459fa416b

packages/SystemUI/src/com/android/systemui/tuner/TunerFragment.java

@@ -104,7 +104,9 @@ public class TunerFragment extends PreferenceFragment {
                 TunerService.showResetRequest(getContext(), new Runnable() {
                     @Override
                     public void run() {
-                        getActivity().finish();
+                        if (getActivity() != null) {
+                            getActivity().finish();
+                        }
                     }
                 });
                 return true;