From e1fcd4654b05457801fe03e519324a03aeebb9b0 Mon Sep 17 00:00:00 2001
From: oracl <oracle0133@gmail.com>
Date: Fri, 19 Jan 2024 18:59:03 +0800
Subject: [PATCH] chore: remove redundant lines for DSCP

---
 listener/tproxy/udp_linux.go | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/listener/tproxy/udp_linux.go b/listener/tproxy/udp_linux.go
index f7f0fd0f..02b51379 100644
--- a/listener/tproxy/udp_linux.go
+++ b/listener/tproxy/udp_linux.go
@@ -105,15 +105,10 @@ func getOrigDst(oob []byte) (netip.AddrPort, error) {
 
 	// retrieve the destination address from the SCM.
 	sa, err := unix.ParseOrigDstAddr(&scms[1])
-
 	if err != nil {
 		return netip.AddrPort{}, fmt.Errorf("retrieve destination: %w", err)
 	}
 
-	if err != nil {
-		return netip.AddrPort{}, fmt.Errorf("retrieve DSCP: %w", err)
-	}
-
 	// encode the destination address into a cmsg.
 	var rAddr netip.AddrPort
 	switch v := sa.(type) {