From b6688015151857ed3f61fa2344c4b220bc9dc4d7 Mon Sep 17 00:00:00 2001 From: Matti Vaittinen Date: Tue, 23 Mar 2021 15:58:11 +0200 Subject: regulator: qcom_spmi-regulator: Clean-up 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 where devm managed over-current IRQ might schedule a new work item after wq was cleaned at remove(). This change is compile-tested only. All testing is appreciated. Signed-off-by: Matti Vaittinen Link: https://lore.kernel.org/r/3bd35bb43257f4bf5b99f75d207ed5e1e08d1d38.1616506559.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Greg Kroah-Hartman --- drivers/regulator/qcom_spmi-regulator.c | 34 ++++++++------------------------- 1 file changed, 8 insertions(+), 26 deletions(-) (limited to 'drivers/regulator') diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c index e62e1d72d943..c2442d7798ab 100644 --- a/drivers/regulator/qcom_spmi-regulator.c +++ b/drivers/regulator/qcom_spmi-regulator.c @@ -5,6 +5,7 @@ #include #include +#include #include #include #include @@ -1842,7 +1843,10 @@ static int spmi_regulator_of_parse(struct device_node *node, return ret; } - INIT_DELAYED_WORK(&vreg->ocp_work, spmi_regulator_vs_ocp_work); + ret = devm_delayed_work_autocancel(dev, &vreg->ocp_work, + spmi_regulator_vs_ocp_work); + if (ret) + return ret; } return 0; @@ -2157,10 +2161,8 @@ static int qcom_spmi_regulator_probe(struct platform_device *pdev) vreg->regmap = regmap; if (reg->ocp) { vreg->ocp_irq = platform_get_irq_byname(pdev, reg->ocp); - if (vreg->ocp_irq < 0) { - ret = vreg->ocp_irq; - goto err; - } + if (vreg->ocp_irq < 0) + return vreg->ocp_irq; } vreg->desc.id = -1; vreg->desc.owner = THIS_MODULE; @@ -2203,8 +2205,7 @@ static int qcom_spmi_regulator_probe(struct platform_device *pdev) rdev = devm_regulator_register(dev, &vreg->desc, &config); if (IS_ERR(rdev)) { dev_err(dev, "failed to register %s\n", name); - ret = PTR_ERR(rdev); - goto err; + return PTR_ERR(rdev); } INIT_LIST_HEAD(&vreg->node); @@ -2212,24 +2213,6 @@ static int qcom_spmi_regulator_probe(struct platform_device *pdev) } return 0; - -err: - list_for_each_entry(vreg, vreg_list, node) - if (vreg->ocp_irq) - cancel_delayed_work_sync(&vreg->ocp_work); - return ret; -} - -static int qcom_spmi_regulator_remove(struct platform_device *pdev) -{ - struct spmi_regulator *vreg; - struct list_head *vreg_list = platform_get_drvdata(pdev); - - list_for_each_entry(vreg, vreg_list, node) - if (vreg->ocp_irq) - cancel_delayed_work_sync(&vreg->ocp_work); - - return 0; } static struct platform_driver qcom_spmi_regulator_driver = { @@ -2238,7 +2221,6 @@ static struct platform_driver qcom_spmi_regulator_driver = { .of_match_table = qcom_spmi_regulator_match, }, .probe = qcom_spmi_regulator_probe, - .remove = qcom_spmi_regulator_remove, }; module_platform_driver(qcom_spmi_regulator_driver); -- cgit v1.2.3