From 296fb35a5c6b0344e2903f70f2ddd23aceb4dfc4 Mon Sep 17 00:00:00 2001
From: Michael Davidsaver <mdavidsaver@gmail.com>
Date: Thu, 27 Jul 2017 18:29:38 +0200
Subject: [PATCH] db_cleanup_events handle 0

---
 src/ioc/db/dbEvent.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/ioc/db/dbEvent.c b/src/ioc/db/dbEvent.c
index a5830881f..e6de60606 100644
--- a/src/ioc/db/dbEvent.c
+++ b/src/ioc/db/dbEvent.c
@@ -324,16 +324,16 @@ fail:
 
 epicsShareFunc void db_cleanup_events(void)
 {
-    freeListCleanup(dbevEventUserFreeList);
+    if(dbevEventUserFreeList) freeListCleanup(dbevEventUserFreeList);
     dbevEventUserFreeList = NULL;
 
-    freeListCleanup(dbevEventQueueFreeList);
+    if(dbevEventQueueFreeList) freeListCleanup(dbevEventQueueFreeList);
     dbevEventQueueFreeList = NULL;
 
-    freeListCleanup(dbevEventSubscriptionFreeList);
+    if(dbevEventSubscriptionFreeList) freeListCleanup(dbevEventSubscriptionFreeList);
     dbevEventSubscriptionFreeList = NULL;
 
-    freeListCleanup(dbevFieldLogFreeList);
+    if(dbevFieldLogFreeList) freeListCleanup(dbevFieldLogFreeList);
     dbevFieldLogFreeList = NULL;
 }