From: xie xingguo <xie.xingguo@zte.com.cn>
Date: Wed, 6 Jan 2016 08:47:36 +0000 (+0800)
Subject: BlueStore: fix potential null pointer access
X-Git-Tag: v10.0.3~42^2~8
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=dc94eb76ca6df95b7aceefe5dd80eae706cc49a5;p=ceph.git

BlueStore: fix potential null pointer access

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
---

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index f7a04319cbb9..ea9a3e40316c 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -5530,7 +5530,7 @@ int BlueStore::_truncate(TransContext *txc,
 
   RWLock::WLocker l(c->lock);
   OnodeRef o = c->get_onode(oid, false);
-  if (!o->exists) {
+  if (!o || !o->exists) {
     r = -ENOENT;
     goto out;
   }