From 017cc4e48f68b374d1533a9c55026918d18b6d4c Mon Sep 17 00:00:00 2001
From: Bonian Chen <bonianchen@google.com>
Date: Mon, 4 May 2020 14:09:46 +0800
Subject: [PATCH] [Settings] Crash avoidance

Avoid crash when NullPointer.

Bug: 155248992
Test: manual
Change-Id: I5e4b46dcdf7ff21713b3f77fc9e20f503800b8e2
---
 .../settings/network/telephony/MobileNetworkSettings.java   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/com/android/settings/network/telephony/MobileNetworkSettings.java b/src/com/android/settings/network/telephony/MobileNetworkSettings.java
index 54fe2c16eef..0f76203d2ae 100644
--- a/src/com/android/settings/network/telephony/MobileNetworkSettings.java
+++ b/src/com/android/settings/network/telephony/MobileNetworkSettings.java
@@ -133,7 +133,11 @@ public class MobileNetworkSettings extends RestrictedDashboardFragment {
     public void onAttach(Context context) {
         super.onAttach(context);
 
-        use(DataUsageSummaryPreferenceController.class).init(mSubId);
+        final DataUsageSummaryPreferenceController dataUsageSummaryPreferenceController =
+                use(DataUsageSummaryPreferenceController.class);
+        if (dataUsageSummaryPreferenceController != null) {
+            dataUsageSummaryPreferenceController.init(mSubId);
+        }
         use(CallsDefaultSubscriptionController.class).init(getLifecycle());
         use(SmsDefaultSubscriptionController.class).init(getLifecycle());
         use(MobileNetworkSwitchController.class).init(getLifecycle(), mSubId);