From 18701f55d8ff303134964ca4d09f710b511b8867 Mon Sep 17 00:00:00 2001
From: Martin Polden <mpolden@mpolden.no>
Date: Tue, 31 Dec 2019 14:01:28 +0100
Subject: Fix race in getValue

---
 cache/cache.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cache/cache.go b/cache/cache.go
index 80a9460..f621611 100644
--- a/cache/cache.go
+++ b/cache/cache.go
@@ -80,8 +80,8 @@ func (c *Cache) Get(key uint64) (*dns.Msg, bool) {
 
 func (c *Cache) getValue(key uint64) (*Value, bool) {
 	c.mu.RLock()
+	defer c.mu.RUnlock()
 	v, ok := c.values[key]
-	c.mu.RUnlock()
 	if !ok {
 		return nil, false
 	}
-- 
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