From 5846b622837e04dbc35b153d9ceda7fd66397520 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Tue, 11 May 2021 16:47:17 +0200
Subject: [PATCH] conn: windows: set count=0 on retry

When retrying, if count is not 0, we forget to dequeue another request,
and so the ring fills up and errors out.

Reported-by: Sascha Dierberg <dierberg@dresearch-fe.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 conn/bind_windows.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/conn/bind_windows.go b/conn/bind_windows.go
index 42208b1..d744987 100644
--- a/conn/bind_windows.go
+++ b/conn/bind_windows.go
@@ -357,6 +357,7 @@ func (bind *afWinRingBind) Receive(buf []byte, isOpen *uint32) (int, Endpoint, e
 	var count uint32
 	var results [1]winrio.Result
 retry:
+	count = 0
 	for tries := 0; count == 0 && tries < receiveSpins; tries++ {
 		if tries > 0 {
 			if atomic.LoadUint32(isOpen) != 1 {