From 35ca6700600f2b1991e71e6196ec03ba4bad997f Mon Sep 17 00:00:00 2001
From: shenlongxing <shenlongxing2012@gmail.com>
Date: Tue, 31 Jul 2018 16:01:44 +0800
Subject: [PATCH] Fix cluster-announce-ip memory leak

---
 src/cluster.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/cluster.c b/src/cluster.c
index 8b76d9ad..7a6a5f78 100644
--- a/src/cluster.c
+++ b/src/cluster.c
@@ -3325,10 +3325,11 @@ void clusterCron(void) {
         if (prev_ip && curr_ip && strcmp(prev_ip,curr_ip)) changed = 1;
 
         if (changed) {
-            prev_ip = curr_ip;
-            if (prev_ip) prev_ip = zstrdup(prev_ip);
+            if (prev_ip) zfree(prev_ip);
 
+            prev_ip = curr_ip;
             if (curr_ip) {
+                prev_ip = zstrdup(prev_ip);
                 strncpy(myself->ip,server.cluster_announce_ip,NET_IP_STR_LEN);
                 myself->ip[NET_IP_STR_LEN-1] = '\0';
             } else {