]> git.ipfire.org Git - thirdparty/kernel/linux.git/commit
power: supply: bq24190: Avoid rescheduling after cancelling work
authorKrzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Fri, 20 Feb 2026 17:49:41 +0000 (18:49 +0100)
committerSebastian Reichel <sebastian.reichel@collabora.com>
Tue, 3 Mar 2026 22:58:08 +0000 (23:58 +0100)
commit4f73a52df7d282784f4f040efc9e124b477ca504
tree847a50e7cad906a0858581a0363dee086323e886
parent727fe2e90ec6365771b3cd49dc0e263bc602d7c1
power: supply: bq24190: Avoid rescheduling after cancelling work

Driver initializes delayed work and then registers interrupt handler
with devm interface.  This means that device removal will not use a
reversed order, but first cancel pending work items and then, via devm
release handlers, free the interrupt.

The interrupt handler does not directly use/schedule work
items on the workqueue, however it updates the status of the battery
charger which might lead to calling power_supply_changed() and trigger
chain of calls leading to scheduling the work items.  If this happens
during short time window after cancel_delayed_work_sync() in remove()
callback, the work would be rescheduled.

Avoid this by using devm interface to initialize and cancel work item,
thus having exactly reverse order during remove() in respect to rest of
the probe/cleanup paths.  This is also more logical and readable code.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Link: https://patch.msgid.link/20260220174938.672883-7-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
drivers/power/supply/bq24190_charger.c