From 5309828bc5d76d09d9ae65861e4cb131fa24c8ab Mon Sep 17 00:00:00 2001
From: sulenn <273409891@qq.com>
Date: Fri, 13 Mar 2020 10:56:58 +0800
Subject: [PATCH] modify 'defer mu.Lock()' to 'defer mu.Unlock()' in
 question/q015.md

---
 question/q015.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/question/q015.md b/question/q015.md
index b460d6a..f14a9d4 100644
--- a/question/q015.md
+++ b/question/q015.md
@@ -19,7 +19,7 @@ func main() {
 }
 func A() {
 	mu.Lock()
-	defer mu.Lock()
+	defer mu.Unlock()
 	chain = chain + " --> A"
 	B()
 }
@@ -29,7 +29,7 @@ func B() {
 }
 func C() {
 	mu.Lock()
-	defer mu.Lock()
+	defer mu.Unlock()
 	chain = chain + " --> C"
 }
 ```