From e48365e2c2507e2b3eac0b5fda07c5f8c46e3ff7 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Tue, 17 Dec 2013 14:50:24 +0100
Subject: [PATCH] Cluster: set n->slaves to NULL in clusterNodeResetSlaves().

The value was otherwise undefined, so next time the node was promoted
again from slave to master, adding a slave to the list of slaves
would likely crash the server or result into undefined behavior.
---
 src/cluster.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/cluster.c b/src/cluster.c
index be709322f..75a4e59d2 100644
--- a/src/cluster.c
+++ b/src/cluster.c
@@ -537,6 +537,7 @@ int clusterNodeAddSlave(clusterNode *master, clusterNode *slave) {
 void clusterNodeResetSlaves(clusterNode *n) {
     zfree(n->slaves);
     n->numslaves = 0;
+    n->slaves = NULL;
 }
 
 void freeClusterNode(clusterNode *n) {