[patch]hp_accel: Fix race in device removal

From: Oliver Neukum <oneukum@suse.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Eric Piel <eric.piel@tremplin-utc.net>,
	Pavel Machek <pavel@ucw.cz>,
	Pavel Herrmann <morpheus.ibis@gmail.com>,
	lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org,
	stable@kernel.org
Subject: [patch]hp_accel: Fix race in device removal
Date: Fri, 7 May 2010 17:47:40 +0200	[thread overview]
Message-ID: <201005071747.40801.oneukum@suse.de> (raw)

>From 64a9e0d8e585c65526248e6cf1659a13fb01a93a Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oliver@neukum.org>
Date: Fri, 7 May 2010 17:41:59 +0200
Subject: [PATCH] hp_accel: Fix race in device removal

The work queue has to be flushed after the device has been made
inaccessible.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
---
 drivers/hwmon/hp_accel.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c
index c8ab505..6f6e05d 100644
--- a/drivers/hwmon/hp_accel.c
+++ b/drivers/hwmon/hp_accel.c
@@ -328,9 +328,9 @@ static int lis3lv02d_remove(struct acpi_device *device, int type)
 	lis3lv02d_joystick_disable();
 	lis3lv02d_poweroff(&lis3_dev);
 
-	flush_work(&hpled_led.work);
 	led_classdev_unregister(&hpled_led.led_classdev);
-
+	flush_work(&hpled_led.work);
+	
 	return lis3lv02d_remove_fs(&lis3_dev);
 }
 
-- 
1.6.4.2

