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power: supply: tps65217: Use 'poll_task' on unloading the module

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Use the task_struct variable for running polling thread. If polling task
is activated, then use it to stop running thread.
This is a preceding step of supporting two interrupts of TPS65217 charger,
so checking single IRQ number is not appropriate when the module is removed.

Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Milo Kim 2016-12-18 11:54:26 +09:00 committed by Sebastian Reichel
parent bdca5d9e6b
commit 9ef0bf1184
1 changed files with 8 additions and 5 deletions
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13
drivers/power/supply/tps65217_charger.c
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@ -200,6 +200,7 @@ static int tps65217_charger_probe(struct platform_device *pdev)
struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
struct tps65217_charger *charger;
struct power_supply_config cfg = {};
struct task_struct *poll_task;
int irq;
int ret;
@ -250,14 +251,16 @@ static int tps65217_charger_probe(struct platform_device *pdev)
/* Check current state */
tps65217_charger_irq(irq, charger);
} else {
charger->poll_task = kthread_run(tps65217_charger_poll_task,
charger, "ktps65217charger");
if (IS_ERR(charger->poll_task)) {
ret = PTR_ERR(charger->poll_task);
poll_task = kthread_run(tps65217_charger_poll_task,
charger, "ktps65217charger");
if (IS_ERR(poll_task)) {
ret = PTR_ERR(poll_task);
dev_err(charger->dev,
"Unable to run kthread err %d\n", ret);
return ret;
}
charger->poll_task = poll_task;
}
return 0;
@ -267,7 +270,7 @@ static int tps65217_charger_remove(struct platform_device *pdev)
{
struct tps65217_charger *charger = platform_get_drvdata(pdev);
if (charger->irq == -ENXIO)
if (charger->poll_task)
kthread_stop(charger->poll_task);
return 0;