From: Yan, Zheng <zyan@redhat.com>
Date: Sun, 19 Jan 2020 07:44:02 +0000 (+0800)
Subject: mds: fix null pointer dereference in Server::handle_client_link()
X-Git-Tag: v15.1.0~75^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=f5e819cda150805029c1cf071c0e8382dee80b95;p=ceph-ci.git

mds: fix null pointer dereference in Server::handle_client_link()

Fixes: https://tracker.ceph.com/issues/43660
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
---

diff --git a/src/mds/Server.cc b/src/mds/Server.cc
index 35da262d408..ce1e6fb5e0c 100644
--- a/src/mds/Server.cc
+++ b/src/mds/Server.cc
@@ -6136,6 +6136,7 @@ void Server::handle_client_link(MDRequestRef& mdr)
     if (!targeti) {
       dout(10) << "ESTALE on path2, attempting recovery" << dendl;
       mdcache->find_ino_peers(req->get_filepath2().get_ino(), new C_MDS_TryFindInode(this, mdr));
+      return;
     }
     mdr->pin(targeti);