From 6a5d3e96c96c0cd5ec9e1ec1e1c4ed42dc73f84f Mon Sep 17 00:00:00 2001
From: Sanjay Tripathi <sanjay.tripathi@citrix.com>
Date: Fri, 14 Mar 2014 13:35:22 +0530
Subject: [PATCH] CLOUDSTACK-6238: NPE in HostStatsCollector.

---
 server/src/com/cloud/server/StatsCollector.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/server/src/com/cloud/server/StatsCollector.java b/server/src/com/cloud/server/StatsCollector.java
index 067ed003f39..50aa93cd5ee 100755
--- a/server/src/com/cloud/server/StatsCollector.java
+++ b/server/src/com/cloud/server/StatsCollector.java
@@ -343,7 +343,9 @@ public class StatsCollector extends ManagerBase implements ComponentMethodInterc
                 }
                 for (HostVO host : gpuEnabledHosts) {
                     HashMap<String, HashMap<String, Long>> groupDetails = _resourceMgr.getGPUStatistics(host);
-                    _resourceMgr.updateGPUDetails(host.getId(), groupDetails);
+                    if (groupDetails != null) {
+                        _resourceMgr.updateGPUDetails(host.getId(), groupDetails);
+                    }
                 }
                 hostIds = _hostGpuGroupsDao.listHostIds();
             } catch (Throwable t) {