From 069152e4330ec804d3e92617a2f0fcce7d169673 Mon Sep 17 00:00:00 2001
From: jhb <jhb@FreeBSD.org>
Date: Wed, 10 Sep 2008 17:41:41 +0000
Subject: Add a proper detach method to the est(4) driver using
 cpufreq_unregister().

MFC after:	1 week
---
 sys/i386/cpufreq/est.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/sys/i386/cpufreq/est.c b/sys/i386/cpufreq/est.c
index c75a31a..cff4219 100644
--- a/sys/i386/cpufreq/est.c
+++ b/sys/i386/cpufreq/est.c
@@ -1036,14 +1036,17 @@ est_attach(device_t dev)
 static int
 est_detach(device_t dev)
 {
-#if 0
 	struct est_softc *sc;
+	int error;
+
+	error = cpufreq_unregister(dev);
+	if (error)
+		return (error);
 
 	sc = device_get_softc(dev);
 	if (sc->acpi_settings || sc->msr_settings)
 		free(sc->freq_list, M_DEVBUF);
-#endif
-	return (ENXIO);
+	return (0);
 }
 
 /*
-- 
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