From 47b243be5d649b773ed11f0446ad490d3642ee1f Mon Sep 17 00:00:00 2001
From: Yicheng Qin <qycqycqycqycqyc@gmail.com>
Date: Sat, 22 Aug 2015 16:42:27 -0700
Subject: [PATCH] storage: let TxnDeleteRange return rev if no error

If it doesn't return error, it should return valid rev.
---
 storage/kvstore.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/storage/kvstore.go b/storage/kvstore.go
index c6e276b84..53f63c2a1 100644
--- a/storage/kvstore.go
+++ b/storage/kvstore.go
@@ -146,6 +146,8 @@ func (s *store) TxnDeleteRange(txnID int64, key, end []byte) (n, rev int64, err
 	n = s.deleteRange(key, end, s.currentRev.main+1)
 	if n != 0 || s.currentRev.sub != 0 {
 		rev = int64(s.currentRev.main + 1)
+	} else {
+		rev = int64(s.currentRev.main)
 	}
 	return n, rev, nil
 }