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| author | Thomas Zeitlhofer <thomas.zeitlhofer+lkml@ze-it.at> | 2025-05-19 10:54:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-06 11:04:14 +0200 |
| commit | 57a3d82200dbeccd002244b96acad570eeeb731f (patch) | |
| tree | fa159d72e4c8a305d18239572ff6540393a4e3ed /tools/perf/scripts/python/gecko.py | |
| parent | 8ab49b8f0f37e579f354f69993f5fadfc3cef3d8 (diff) | |
HID: wacom: fix crash in wacom_aes_battery_handler()
[ Upstream commit f3054152c12e2eed1e72704aff47b0ea58229584 ]
Commit fd2a9b29dc9c ("HID: wacom: Remove AES power_supply after extended
inactivity") introduced wacom_aes_battery_handler() which is scheduled
as a delayed work (aes_battery_work).
In wacom_remove(), aes_battery_work is not canceled. Consequently, if
the device is removed while aes_battery_work is still pending, then hard
crashes or "Oops: general protection fault..." are experienced when
wacom_aes_battery_handler() is finally called. E.g., this happens with
built-in USB devices after resume from hibernate when aes_battery_work
was still pending at the time of hibernation.
So, take care to cancel aes_battery_work in wacom_remove().
Fixes: fd2a9b29dc9c ("HID: wacom: Remove AES power_supply after extended inactivity")
Signed-off-by: Thomas Zeitlhofer <thomas.zeitlhofer+lkml@ze-it.at>
Acked-by: Ping Cheng <ping.cheng@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/gecko.py')
0 files changed, 0 insertions, 0 deletions