From b75b5648541ea38deaf678ee62466780ffe62374 Mon Sep 17 00:00:00 2001
From: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Tue, 23 Feb 2016 21:44:23 +0800
Subject: [PATCH] kqueue: Return value of knote_release is no longer useful.

---
 sys/kern/kern_event.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c
index c028eff9dd..ad4bb33585 100644
--- a/sys/kern/kern_event.c
+++ b/sys/kern/kern_event.c
@@ -196,11 +196,9 @@ knote_acquire(struct knote *kn)
  *
  * Non-zero is returned if the knote is destroyed or detached.
  */
-static __inline int
+static __inline void
 knote_release(struct knote *kn)
 {
-	int ret;
-
 	while (kn->kn_status & KN_REPROCESS) {
 		kn->kn_status &= ~KN_REPROCESS;
 		if (kn->kn_status & KN_WAITING) {
@@ -209,19 +207,14 @@ knote_release(struct knote *kn)
 		}
 		if (kn->kn_status & KN_DELETING) {
 			knote_detach_and_drop(kn);
-			return(1);
+			return;
 			/* NOT REACHED */
 		}
 		if (filter_event(kn, 0))
 			KNOTE_ACTIVATE(kn);
 	}
-	if (kn->kn_status & KN_DETACHED)
-		ret = 1;
-	else
-		ret = 0;
 	kn->kn_status &= ~KN_PROCESSING;
 	/* kn should not be accessed anymore */
-	return ret;
 }
 
 static int
-- 
2.11.4.GIT