dnsredir.go: Refine

Author: leiless

dnsredir.go

@@ -78,11 +78,10 @@ func (r *Dnsredir) ServeDNS(ctx context.Context, w dns.ResponseWriter, req *dns.
 	var upstreamErr error
 	var tryCount int32
 	deadline := time.Now().Add(defaultTimeout)
-	tryCount = 0
 	for time.Now().Before(deadline) {
-		tryCount += 1
 		start := time.Now()
 
+		tryCount++
 		host := upstream.Select()
 		if host == nil || tryCount > upstream.maxRetry {
 			log.Debug(errNoHealthy)