From 9a05872fdd499575961ee1a8d188d19054841eb8 Mon Sep 17 00:00:00 2001
From: Aswin Toni <aswin.toni@cern.ch>
Date: Fri, 1 Oct 2021 16:12:22 +0200
Subject: [PATCH] MetricCollector.h: Add check to prevent mgr from crashing

Fixes: https://tracker.ceph.com/issues/52801
Signed-off-by: Aswin Toni <aswin.toni@cern.ch>
---
 src/mgr/MetricCollector.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mgr/MetricCollector.h b/src/mgr/MetricCollector.h
index 19a3eed9b0aba..65e71e276e432 100644
--- a/src/mgr/MetricCollector.h
+++ b/src/mgr/MetricCollector.h
@@ -42,7 +42,9 @@ public:
       auto result_it = result.insert({query, {}}).first;
       if (is_limited(limits)) {
         for (auto& limit : limits) {
-          result_it->second.insert(*limit.second);
+          if (limit.second) {
+            result_it->second.insert(*limit.second);
+          }
         }
       }
     }
-- 
2.39.5