From: Kurnia D Win <kurnia.d.win@gmail.com>
Date: Wed, 7 Jun 2023 05:41:02 +0000 (+0700)
Subject: rwcancel: fix wrong poll event flag on ReadyWrite
X-Git-Tag: 0.0.20250515~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=436f7fdc1670df26eee958de464cf5cb0385abec;p=thirdparty%2Fwireguard-go.git

rwcancel: fix wrong poll event flag on ReadyWrite

It should be POLLIN because closeFd is read-only file.

Signed-off-by: Kurnia D Win <kurnia.d.win@gmail.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---

diff --git a/rwcancel/rwcancel.go b/rwcancel/rwcancel.go
index 793e764..4372453 100644
--- a/rwcancel/rwcancel.go
+++ b/rwcancel/rwcancel.go
@@ -64,7 +64,7 @@ func (rw *RWCancel) ReadyRead() bool {
 
 func (rw *RWCancel) ReadyWrite() bool {
 	closeFd := int32(rw.closingReader.Fd())
-	pollFds := []unix.PollFd{{Fd: int32(rw.fd), Events: unix.POLLOUT}, {Fd: closeFd, Events: unix.POLLOUT}}
+	pollFds := []unix.PollFd{{Fd: int32(rw.fd), Events: unix.POLLOUT}, {Fd: closeFd, Events: unix.POLLIN}}
 	var err error
 	for {
 		_, err = unix.Poll(pollFds, -1)