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power: supply: bq25890: Ensure pump_express_work is cancelled on remove

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The pump_express_work which gets queued from an external_power_changed
callback might be pending / running on remove() (or on probe failure).

Add a devm action cancelling the work, to ensure that it is cancelled.

Note the devm action is added before devm_power_supply_register(), making
it run after devm unregisters the power_supply, so that the work cannot
be queued anymore (this is also why a devm action is used for this).

Fixes: 48f45b094d ("power: supply: bq25890: Support higher charging voltages through Pump Express+ protocol")
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Hans de Goede 2022-11-28 10:28:48 +01:00 committed by Sebastian Reichel
parent 54c03bfd09
commit a7aaa80098
1 changed files with 15 additions and 0 deletions
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15
drivers/power/supply/bq25890_charger.c
View file

@ -1317,6 +1317,13 @@ static int bq25890_fw_probe(struct bq25890_device *bq)
return 0;
}
static void bq25890_non_devm_cleanup(void *data)
{
struct bq25890_device *bq = data;
cancel_delayed_work_sync(&bq->pump_express_work);
}
static int bq25890_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
@ -1372,6 +1379,14 @@ static int bq25890_probe(struct i2c_client *client)
/* OTG reporting */
bq->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
/*
* This must be before bq25890_power_supply_init(), so that it runs
* after devm unregisters the power_supply.
*/
ret = devm_add_action_or_reset(dev, bq25890_non_devm_cleanup, bq);
if (ret)
return ret;
ret = bq25890_register_regulator(bq);
if (ret)
return ret;