From f5a320c21845199983e3dce2b0dca97abf2cd5c9 Mon Sep 17 00:00:00 2001
From: haodong <haodong.tang@intel.com>
Date: Wed, 17 Aug 2016 23:26:18 +0800
Subject: [PATCH] kv: fix iterator bug in prev

Signed-off-by: Haodong Tang <haodong.tang@intel.com>
---
 src/kv/MemDB.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/kv/MemDB.cc b/src/kv/MemDB.cc
index b0563882c83..9e6c4c67092 100644
--- a/src/kv/MemDB.cc
+++ b/src/kv/MemDB.cc
@@ -478,8 +478,8 @@ int MemDB::MDBWholeSpaceIteratorImpl:: prev()
     return -1;
   }
   free_last();
-  m_iter--;
-  if (m_iter != m_btree_p->end()) {
+  if (m_iter != m_btree_p->begin()) {
+    m_iter--;
     fill_current();
     return 0;
   } else {
-- 
2.47.3