From 7b53256bb825383fc604a96d71bcd51c36668cc4 Mon Sep 17 00:00:00 2001
From: Jason Dillaman <dillaman@redhat.com>
Date: Sat, 18 Nov 2017 08:30:27 -0500
Subject: [PATCH] librbd: set deleted parent pointer to null

Fixes: http://tracker.ceph.com/issues/22158
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
---
 src/librbd/image/RefreshParentRequest.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/librbd/image/RefreshParentRequest.cc b/src/librbd/image/RefreshParentRequest.cc
index 9ad7ed05d0a..df9ff9548b0 100644
--- a/src/librbd/image/RefreshParentRequest.cc
+++ b/src/librbd/image/RefreshParentRequest.cc
@@ -213,6 +213,8 @@ Context *RefreshParentRequest<I>::handle_close_parent(int *result) {
   ldout(cct, 10) << this << " " << __func__ << " r=" << *result << dendl;
 
   delete m_parent_image_ctx;
+  m_parent_image_ctx = nullptr;
+
   if (*result < 0) {
     lderr(cct) << "failed to close parent image: " << cpp_strerror(*result)
                << dendl;
-- 
2.39.5