From 994e85425f956e35baadff142eafdf898c0e48c3 Mon Sep 17 00:00:00 2001
From: wwqgtxx <wwqgtxx@gmail.com>
Date: Wed, 16 Nov 2022 17:53:52 +0800
Subject: [PATCH] fix: resolver's defer

---
 dns/resolver.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dns/resolver.go b/dns/resolver.go
index a0623dc27..4e31074c7 100644
--- a/dns/resolver.go
+++ b/dns/resolver.go
@@ -159,9 +159,9 @@ func (r *Resolver) ExchangeContext(ctx context.Context, m *D.Msg) (msg *D.Msg, e
 	continueFetch := false
 	defer func() {
 		if continueFetch || errors.Is(err, context.DeadlineExceeded) || errors.Is(err, context.Canceled) {
-			ctx, cancel := context.WithTimeout(context.Background(), resolver.DefaultDNSTimeout)
-			defer cancel()
 			go func() {
+				ctx, cancel := context.WithTimeout(context.Background(), resolver.DefaultDNSTimeout)
+				defer cancel()
 				_, _ = r.exchangeWithoutCache(ctx, m) // ignore result, just for putMsgToCache
 			}()
 		}