From 0f1856b7fc87ed49e86b98b310c93d0876a1697a Mon Sep 17 00:00:00 2001
From: siddontang <siddontang@gmail.com>
Date: Thu, 15 May 2014 20:48:38 +0800
Subject: [PATCH] update kv decr

---
 ledis/cmd_kv.go | 2 +-
 ledis/t_kv.go   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/ledis/cmd_kv.go b/ledis/cmd_kv.go
index 754fb95..877b5b5 100644
--- a/ledis/cmd_kv.go
+++ b/ledis/cmd_kv.go
@@ -137,7 +137,7 @@ func decrbyCommand(c *client) error {
 		return err
 	}
 
-	if n, err := c.db.DecrBy(c.args[0], -delta); err != nil {
+	if n, err := c.db.DecrBy(c.args[0], delta); err != nil {
 		return err
 	} else {
 		c.writeInteger(n)
diff --git a/ledis/t_kv.go b/ledis/t_kv.go
index bf273fb..b4c27f9 100644
--- a/ledis/t_kv.go
+++ b/ledis/t_kv.go
@@ -51,7 +51,7 @@ func (db *DB) Decr(key []byte) (int64, error) {
 }
 
 func (db *DB) DecrBy(key []byte, decrement int64) (int64, error) {
-	return db.incr(key, decrement)
+	return db.incr(key, -decrement)
 }
 
 func (db *DB) Del(keys [][]byte) (int64, error) {