From a4866e39649a32484c355f5a192cdfbeec7d82a3 Mon Sep 17 00:00:00 2001
From: Xargin <cao1988228@163.com>
Date: Wed, 28 Sep 2016 23:37:36 +0800
Subject: [PATCH] fix code typo

---
 ch9/ch9-07.md | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/ch9/ch9-07.md b/ch9/ch9-07.md
index 56a086a..63f5bbe 100644
--- a/ch9/ch9-07.md
+++ b/ch9/ch9-07.md
@@ -163,9 +163,6 @@ type Memo struct {
 
 // Get is concurrency-safe.
 func (memo *Memo) Get(key string) (value interface{}, err error) {
-    res, ok := memo.cache[key]
-    if !ok {
-	res.value, res.err = memo.f(key)
 	memo.cache[key] = res
 	memo.mu.Lock()
 	res, ok := memo.cache[key]