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HID: hid-lenovo-go-s: Prevent deadlock if device removed during setup

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hid_gos_cfg_remove() calls a mutex before canceling delayed work. That
delayed work function calls mcu_property_out(), which holds the same mutex.
Prevent deadlock my removing the mutex prior to stopping the work.
Additionally, since cancel_delayed_work has the potential to re-arm,
switch to disable_delayed_work.

Fixes: a23f3497bf ("HID: hid-lenovo-go-s: Add Lenovo Legion Go S Series HID Driver")
Cc: stable@vger.kernel.org
Signed-off-by: Derek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Derek J. Clark 2026-09-14 15:52:56 -07:00 committed by Jiri Kosina
parent 6224755416
commit 0ef3036c68
1 changed files with 1 additions and 2 deletions
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3
drivers/hid/hid-lenovo-go-s.c
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@ -1442,8 +1442,7 @@ static int hid_gos_cfg_probe(struct hid_device *hdev,
static void hid_gos_cfg_remove(struct hid_device *hdev)
{
guard(mutex)(&drvdata.cfg_mutex);
cancel_delayed_work_sync(&drvdata.gos_cfg_setup);
disable_delayed_work_sync(&drvdata.gos_cfg_setup);
sysfs_remove_groups(&hdev->dev.kobj, top_level_attr_groups);
hid_hw_close(hdev);
hid_hw_stop(hdev);