From f055a53b43322a8d80a4aa362ec2a71d446334e7 Mon Sep 17 00:00:00 2001
From: Akira Ajisaka <aajisaka@apache.org>
Date: Thu, 12 Apr 2018 17:47:37 +0900
Subject: [PATCH] HDFS-7101. Potential null dereference in DFSck#doWork().
 Contributed by skrho and Ted Yu.

(cherry picked from commit 113af12cfb240ea9a7189bb2701693466eb8e993)
---
 .../src/main/java/org/apache/hadoop/hdfs/tools/DFSck.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSck.java b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSck.java
index 199f4592de1..0c69b6de813 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSck.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/DFSck.java
@@ -350,7 +350,7 @@ public class DFSck extends Configured implements Tool {
     BufferedReader input = new BufferedReader(new InputStreamReader(
                                               stream, "UTF-8"));
     String line = null;
-    String lastLine = null;
+    String lastLine = NamenodeFsck.CORRUPT_STATUS;
     int errCode = -1;
     try {
       while ((line = input.readLine()) != null) {