From: Kongming Wu <wu.kongming@h3c.com>
Date: Tue, 26 Jan 2016 02:45:52 +0000 (+0800)
Subject: mds:judgment added to avoid the risk of visting the NULL pointer
X-Git-Tag: v10.0.4~172^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=845f3f7fe87f916836fc5e14f45895b7b32fbc5a;p=ceph.git

mds:judgment added to avoid the risk of visting the NULL pointer

Signed-off-by: chenyehua11692 chen.yehua@h3c.com
---

diff --git a/src/mds/MDCache.cc b/src/mds/MDCache.cc
index bcf7046c86a8..2c61fae0ab61 100644
--- a/src/mds/MDCache.cc
+++ b/src/mds/MDCache.cc
@@ -7406,7 +7406,7 @@ bool MDCache::shutdown_pass()
   assert(subtrees.empty());
 
   // Still replicas of mydir?
-  if (mydir->inode->is_replicated()) {
+  if ((mydir != NULL) && mydir->inode->is_replicated()) {
     // We do this because otherwise acks to locks could come in after
     // we cap the log.
     dout(7) << "waiting for mydir replicas to release: " << *mydir << dendl;