eeepc-laptop: fix use after free

eeepc-laptop uses the hwmon struct after unregistering the device, causing
an oops on module unload.  Flip the ordering to fix.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Karol Kozimor <sziwan@users.sourceforge.net>
Cc: <stable@kernel.org>		[2.6.26.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/misc/eeepc-laptop.c b/drivers/misc/eeepc-laptop.c
index 9e8d79e7e9f4cb4b105840ce71420e435820edd5..facdb9893c84c322dbb65f47e2a7bf8de3c69685 100644 (file)
--- a/drivers/misc/eeepc-laptop.c
+++ b/drivers/misc/eeepc-laptop.c
@@ -553,9 +553,9 @@ static void eeepc_hwmon_exit(void)
        hwmon = eeepc_hwmon_device;
        if (!hwmon)
                return ;
-       hwmon_device_unregister(hwmon);
        sysfs_remove_group(&hwmon->kobj,
                           &hwmon_attribute_group);
+       hwmon_device_unregister(hwmon);
        eeepc_hwmon_device = NULL;
 }