From 1f4c083fa837f4b5b21e4873977948ec270634fb Mon Sep 17 00:00:00 2001
From: Mingye Chen <mingyechen82@gmail.com>
Date: Tue, 17 Oct 2023 14:44:54 -0400
Subject: [PATCH] Return correct error

---
 pkg/dtls/heartbeat.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkg/dtls/heartbeat.go b/pkg/dtls/heartbeat.go
index f16a5afe..22f20646 100644
--- a/pkg/dtls/heartbeat.go
+++ b/pkg/dtls/heartbeat.go
@@ -80,17 +80,17 @@ func (c *hbConn) Write(b []byte) (n int, err error) {
 	return c.conn.Write(b)
 }
 
-func (c *hbConn) Read(b []byte) (n int, err error) {
+func (c *hbConn) Read(b []byte) (int, error) {
 	readBytes := <-c.recvCh
 	if readBytes.err != nil {
-		return 0, err
+		return 0, readBytes.err
 	}
 
 	if len(b) < len(readBytes.b) {
 		return 0, ErrInsufficientBuffer
 	}
 
-	n = copy(b, readBytes.b)
+	n := copy(b, readBytes.b)
 
 	return n, nil
 }