[PATCH 0/2] HID: lenovo: two ordering fixes in remove() and tpkbd probe

[Oleg Keri]

Two long-standing ordering bugs in hid-lenovo, both pointed out by the
Sashiko review of an unrelated patch of mine [1].  Neither is specific to
any recent change; the first dates from 2020, the second from the original
2012 trackpoint keyboard driver.

Patch 1: lenovo_remove() cancels the tablet keyboards' fn_lock_sync_work
while the hardware is still delivering the events that re-queue it, so a
key press in that window leaves the work pending across the devres free
of its data.  Stop the hardware before the per-model teardown.

Patch 2: lenovo_probe_tpkbd() exposes sysfs attributes before allocating
the drvdata they dereference.  Allocate first.

Compile-tested only: I have neither a ThinkPad 10 Ultrabook Keyboard nor a
ThinkPad USB Keyboard with TrackPoint.  Both changes are pure reorderings
of existing calls.

[1] https://lore.kernel.org/all/20260910064345.9BF1E1F000FF@xxxxxxxxxxxxxxx/

Oleg Keri (2):
  HID: lenovo: stop the hardware before the per-model teardown
  HID: lenovo: allocate the trackpoint drvdata before exposing its sysfs
    attributes

 drivers/hid/hid-lenovo.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

-- 
2.55.0


base-commit: df2908090cda368b01ff43709f51890076c56157