From: Yan Jun <yan.jun8@zte.com.cn>
Date: Wed, 20 Sep 2017 08:47:13 +0000 (+0800)
Subject: osd/PrimaryLogPG: avoid accessing value of map.end()
X-Git-Tag: v13.0.1~836^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=bebea1c5d640bcca86e343aa7156df40e22e3b70;p=ceph.git

osd/PrimaryLogPG: avoid accessing value of map.end()

Signed-off-by: Yan Jun <yan.jun8@zte.com.cn>
---

diff --git a/src/osd/PrimaryLogPG.cc b/src/osd/PrimaryLogPG.cc
index de0ea8df4537..e74d5bfb2f2b 100644
--- a/src/osd/PrimaryLogPG.cc
+++ b/src/osd/PrimaryLogPG.cc
@@ -6965,8 +6965,8 @@ int PrimaryLogPG::_rollback_to(OpContext *ctx, ceph_osd_op& op)
 
       map<snapid_t, interval_set<uint64_t> >::iterator iter =
 	snapset.clone_overlap.lower_bound(snapid);
-      interval_set<uint64_t> overlaps = iter->second;
       assert(iter != snapset.clone_overlap.end());
+      interval_set<uint64_t> overlaps = iter->second;
       for ( ;
 	    iter != snapset.clone_overlap.end();
 	    ++iter)