From 4dee11efe95b3a368998ce9683e3c0e00decdd3c Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Thu, 3 Sep 2020 14:34:06 +1000
Subject: [PATCH] Fix panic for unexpected piece rejections

Should fix #419.
---
 peerconn.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/peerconn.go b/peerconn.go
index d344556c..adb60319 100644
--- a/peerconn.go
+++ b/peerconn.go
@@ -1160,8 +1160,9 @@ func (c *PeerConn) mainReadLoop() (err error) {
 }
 
 func (c *peer) remoteRejectedRequest(r request) {
-	c.deleteRequest(r)
-	c.decExpectedChunkReceive(r)
+	if c.deleteRequest(r) {
+		c.decExpectedChunkReceive(r)
+	}
 }
 
 func (c *peer) decExpectedChunkReceive(r request) {