From e9edc1634947519df3589f62a7baecd2c2b6f593 Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Mon, 21 Sep 2020 15:17:16 -0700
Subject: [PATCH] device: fix error shadowing before log print

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
---
 device/receive.go | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/device/receive.go b/device/receive.go
index aeaae51..e9cf2bc 100644
--- a/device/receive.go
+++ b/device/receive.go
@@ -633,14 +633,14 @@ func (peer *Peer) RoutineSequentialReceiver() {
 
 		offset := MessageTransportOffsetContent
 		_, err := device.tun.device.Write(elem.buffer[:offset+len(elem.packet)], offset)
+		if err != nil && !device.isClosed.Get() {
+			logError.Println("Failed to write packet to TUN device:", err)
+		}
 		if len(peer.queue.inbound) == 0 {
-			err = device.tun.device.Flush()
+			err := device.tun.device.Flush()
 			if err != nil {
 				peer.device.log.Error.Printf("Unable to flush packets: %v", err)
 			}
 		}
-		if err != nil && !device.isClosed.Get() {
-			logError.Println("Failed to write packet to TUN device:", err)
-		}
 	}
 }