From 5371dbf5ad8d3fcb8000f2295fb64393e64d44b2 Mon Sep 17 00:00:00 2001
From: Robert Greenwalt <rgreenwalt@google.com>
Date: Fri, 22 Mar 2013 12:00:17 -0700
Subject: [PATCH] Prevent NPE in new API.

bug:8455284
Change-Id: I26ecbd024d1fe001f3af792c4e66409b2968c7ec
---
 core/java/android/net/LinkProperties.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/java/android/net/LinkProperties.java b/core/java/android/net/LinkProperties.java
index e5227548b5..eedc372d25 100644
--- a/core/java/android/net/LinkProperties.java
+++ b/core/java/android/net/LinkProperties.java
@@ -121,7 +121,7 @@ public class LinkProperties implements Parcelable {
 
     public Collection<String> getAllInterfaceNames() {
         Collection interfaceNames = new ArrayList<String>(mStackedLinks.size() + 1);
-        interfaceNames.add(new String(mIfaceName));
+        if (mIfaceName != null) interfaceNames.add(new String(mIfaceName));
         for (LinkProperties stacked: mStackedLinks.values()) {
             interfaceNames.addAll(stacked.getAllInterfaceNames());
         }