From f94a5becabf43e17490aded8bddc5f924b00338b Mon Sep 17 00:00:00 2001 From: Matti Vaittinen Date: Tue, 23 Mar 2021 15:57:08 +0200 Subject: extconn: Clean-up few drivers by using managed work init Few drivers implement remove call-back only for ensuring a delayed work gets cancelled prior driver removal. Clean-up these by switching to use devm_delayed_work_autocancel() instead. Additionally, this helps avoiding mixing devm and manual resource management and cleans up a (theoretical?) bug from extconn-palmas.c and extcon-qcom-spmi-misc.c where (devm managed)IRQ might schedule new work item after wq was cleaned at remove(). This change is compile-tested only. All testing is appreciated. Reviewed-by: Hans de Goede Signed-off-by: Matti Vaittinen Link: https://lore.kernel.org/r/b1030eddbf0069f2d39e951be1d8e40d6413aeeb.1616506559.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Greg Kroah-Hartman --- drivers/extcon/extcon-qcom-spmi-misc.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) (limited to 'drivers/extcon/extcon-qcom-spmi-misc.c') diff --git a/drivers/extcon/extcon-qcom-spmi-misc.c b/drivers/extcon/extcon-qcom-spmi-misc.c index 6b836ae62176..74d57d951b68 100644 --- a/drivers/extcon/extcon-qcom-spmi-misc.c +++ b/drivers/extcon/extcon-qcom-spmi-misc.c @@ -7,6 +7,7 @@ * Stephen Boyd */ +#include #include #include #include @@ -80,7 +81,11 @@ static int qcom_usb_extcon_probe(struct platform_device *pdev) } info->debounce_jiffies = msecs_to_jiffies(USB_ID_DEBOUNCE_MS); - INIT_DELAYED_WORK(&info->wq_detcable, qcom_usb_extcon_detect_cable); + + ret = devm_delayed_work_autocancel(dev, &info->wq_detcable, + qcom_usb_extcon_detect_cable); + if (ret) + return ret; info->irq = platform_get_irq_byname(pdev, "usb_id"); if (info->irq < 0) @@ -105,15 +110,6 @@ static int qcom_usb_extcon_probe(struct platform_device *pdev) return 0; } -static int qcom_usb_extcon_remove(struct platform_device *pdev) -{ - struct qcom_usb_extcon_info *info = platform_get_drvdata(pdev); - - cancel_delayed_work_sync(&info->wq_detcable); - - return 0; -} - #ifdef CONFIG_PM_SLEEP static int qcom_usb_extcon_suspend(struct device *dev) { @@ -149,7 +145,6 @@ MODULE_DEVICE_TABLE(of, qcom_usb_extcon_dt_match); static struct platform_driver qcom_usb_extcon_driver = { .probe = qcom_usb_extcon_probe, - .remove = qcom_usb_extcon_remove, .driver = { .name = "extcon-pm8941-misc", .pm = &qcom_usb_extcon_pm_ops, -- cgit v1.2.3-70-g09d2