From 6a165a97a09d7c801bd48b762580cf240e20dd18 Mon Sep 17 00:00:00 2001
From: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Mon, 28 Aug 2017 22:38:25 +0800
Subject: [PATCH] poll: Fix inverse test

---
 sys/kern/sys_generic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/kern/sys_generic.c b/sys/kern/sys_generic.c
index f10b06aaab..950424e506 100644
--- a/sys/kern/sys_generic.c
+++ b/sys/kern/sys_generic.c
@@ -1468,7 +1468,7 @@ poll_copyout(void *arg, struct kevent *kevp, int count, int *res)
 					    kevp[i].filter != EVFILT_WRITE &&
 					    kevp[i].data != EOPNOTSUPP &&
 					    kevp[i].data != ENODEV) {
-						if (count_res == 0)
+						if (count_res)
 							++*res;
 						pfd->revents |= POLLERR;
 					}
-- 
2.11.4.GIT