From f92a4b93c57dd52d14205f444ae137ac223e4ff9 Mon Sep 17 00:00:00 2001
From: Hajimu UMEMOTO <ume@FreeBSD.org>
Date: Mon, 18 Jul 2005 20:15:31 +0000
Subject: [PATCH] Ignore EPERM from sysctl(3).  It is returned when passive
 cooling is active.

Reviewed by:	njl
---
 usr.sbin/powerd/powerd.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/usr.sbin/powerd/powerd.c b/usr.sbin/powerd/powerd.c
index 13f515dc5e79..555218c831b8 100644
--- a/usr.sbin/powerd/powerd.c
+++ b/usr.sbin/powerd/powerd.c
@@ -29,6 +29,7 @@
 __FBSDID("$FreeBSD$");
 
 #include <err.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <signal.h>
 #include <stdio.h>
@@ -167,8 +168,10 @@ static int
 set_freq(int freq)
 {
 
-	if (sysctl(freq_mib, 4, NULL, NULL, &freq, sizeof(freq)))
-		return (-1);
+	if (sysctl(freq_mib, 4, NULL, NULL, &freq, sizeof(freq))) {
+		if (errno != EPERM)
+			return (-1);
+	}
 
 	return (0);
 }