mds: set hb to NULL after the memory released

Signed-off-by: Xiubo Li <xiubli@redhat.com>

diff --git a/src/mds/MDSRank.cc b/src/mds/MDSRank.cc
index 89f340647a2d8af20274332b9bf59861f11128e5..94de7861f5705d879c50649eac478c0856b7f550 100644 (file)
--- a/src/mds/MDSRank.cc
+++ b/src/mds/MDSRank.cc
@@ -556,6 +556,7 @@ MDSRank::~MDSRank()
 {
   if (hb) {
     g_ceph_context->get_heartbeat_map()->remove_worker(hb);
+    hb = nullptr;
   }
 
   if (scrubstack) { delete scrubstack; scrubstack = NULL; }