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| author |   Oliver Neukum <oneukum@suse.de> | 2010-05-11 14:07:03 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-11 17:33:42 -0700 |
| commit | 06efbeb4a47b6f865e1c9d175ab9d6e90b69ae9e (patch) | |
| tree | 6c25f5ff4a50ad3d42c93a17a13a278076d2b52a /drivers/hwmon/hp_accel.c | |
| parent | mqueue: fix kernel BUG caused by double free() on mq_open() (diff) | |
| download | linux-dev-06efbeb4a47b6f865e1c9d175ab9d6e90b69ae9e.tar.xz linux-dev-06efbeb4a47b6f865e1c9d175ab9d6e90b69ae9e.zip | |
hp_accel: fix race in device removal
The work queue has to be flushed after the device has been made
inaccessible. The patch closes a window during which a work queue might
remain active after the device is removed and would then lead to ACPI
calls with undefined behavior.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Pavel Herrmann <morpheus.ibis@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/hwmon/hp_accel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c index c8ab50516672..7580f55e67e3 100644 --- a/drivers/hwmon/hp_accel.c +++ b/drivers/hwmon/hp_accel.c @@ -328,8 +328,8 @@ 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); } |