From 672db9f6ec912aac14c0a099a13c446f66224ea2 Mon Sep 17 00:00:00 2001
From: Pavel Rochnyack <pavel2000@ngs.ru>
Date: Thu, 23 Aug 2018 14:21:44 +0700
Subject: [PATCH] redis plugin: Fix coredump when stopping Collectd with
 inaccessible Redis server

---
 src/redis.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/redis.c b/src/redis.c
index 41442b66..dd4deb17 100644
--- a/src/redis.c
+++ b/src/redis.c
@@ -97,7 +97,8 @@ static void redis_node_free(void *arg) {
     rq = next;
   }
 
-  redisFree(rn->redisContext);
+  if (rn->redisContext)
+    redisFree(rn->redisContext);
   sfree(rn->name);
   sfree(rn->host);
   sfree(rn->passwd);
-- 
2.11.0