From d02e2981cbd3f27fb7359f7500b7d2b8fb456cf9 Mon Sep 17 00:00:00 2001
From: Stasik0 <github@stasik.com>
Date: Wed, 13 Jul 2016 06:39:47 +0200
Subject: [PATCH] covering a case when subscription has no monitored item

---
 src/server/ua_server.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/server/ua_server.c b/src/server/ua_server.c
index ee47c7416c4..8cbd98a2d92 100644
--- a/src/server/ua_server.c
+++ b/src/server/ua_server.c
@@ -463,6 +463,9 @@ GetMonitoredItems(void *handle, const UA_NodeId objectId, size_t inputSize,
     LIST_FOREACH(monitoredItem, &subscription->MonitoredItems, listEntry) {
         sizeOfOutput++;
     }
+    if(sizeOfOutput==0)
+        return UA_STATUSCODE_GOOD;
+
     UA_UInt32* clientHandles = UA_Array_new(sizeOfOutput, &UA_TYPES[UA_TYPES_UINT32]);
     UA_UInt32* serverHandles = UA_Array_new(sizeOfOutput, &UA_TYPES[UA_TYPES_UINT32]);
     UA_UInt32 i = 0;