From patchwork Mon Mar 22 07:37:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12154017 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF439C433E0 for ; Mon, 22 Mar 2021 07:38:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B6DCF61974 for ; Mon, 22 Mar 2021 07:38:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229665AbhCVHhg (ORCPT ); Mon, 22 Mar 2021 03:37:36 -0400 Received: from mail-lj1-f173.google.com ([209.85.208.173]:45972 "EHLO mail-lj1-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229866AbhCVHhJ (ORCPT ); Mon, 22 Mar 2021 03:37:09 -0400 Received: by mail-lj1-f173.google.com with SMTP id z8so19757066ljm.12; Mon, 22 Mar 2021 00:37:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=yNHMbYhXYTuAKxP9i1xwQyQREgRd6XRSSDqTIHsn6qA=; b=cbVrqDyPyDdqf5E0wl043egmo5J7iloFp1/I7Pa6Rj5OfOH/u73zyWt7Cnpoh/MIeX UMcZpwq8gHrsGUh3WWA2Ock3w2sIR30C7iFnQ9mXtGTcLVkTd2Z/B/tZPXoDg628xdzI oN/k0KJWc/SF8iAjDBUkgBxRv+icqTA5d/pSdUaxL+IBmjkhJzEnI4bwuR1k/UAeGdnH CRuuZ5TBSZLuUoWG3p1YXmaRpv/C3CCumWNtZKfPOlPkAzvhfs57ILwm2qQPZEiaEMOz jrTHVlc+bvoQSQJpo7aUSofPJzRTjgOEHDkfFBMnUycCjO7SbsKTuwDfRjWx4mP3f0mT DlWg== X-Gm-Message-State: AOAM531FD4pFk0JnjEQ+Mg8SCNhH0j8b3FeLgNHBzB9CquzEsb5YTF9G 84gyPFrqMqnI62Dub+JAWLQ= X-Google-Smtp-Source: ABdhPJzns4vOGbZHqF9S1zc3zLH9VZ1T/sPtll22hhNYUj9q1K+ISS/VvIforouDHuvojrduvJwWzw== X-Received: by 2002:a2e:8006:: with SMTP id j6mr8518777ljg.417.1616398627336; Mon, 22 Mar 2021 00:37:07 -0700 (PDT) Received: from localhost.localdomain (mobile-access-5673b7-246.dhcp.inet.fi. [86.115.183.246]) by smtp.gmail.com with ESMTPSA id j14sm54149lfg.134.2021.03.22.00.37.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Mar 2021 00:37:07 -0700 (PDT) Date: Mon, 22 Mar 2021 09:37:01 +0200 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: MyungJoo Ham , Chanwoo Choi , Andy Gross , Bjorn Andersson , Guenter Roeck , Hans de Goede , Mark Gross , Matti Vaittinen , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [RFC RESEND PATCH v2 3/8] extconn: Clean-up few drivers by using managed work init Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org 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. Signed-off-by: Matti Vaittinen --- drivers/extcon/extcon-gpio.c | 15 ++++----------- drivers/extcon/extcon-intel-int3496.c | 16 ++++------------ drivers/extcon/extcon-palmas.c | 17 ++++++----------- drivers/extcon/extcon-qcom-spmi-misc.c | 17 ++++++----------- 4 files changed, 20 insertions(+), 45 deletions(-) diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c index c211222f5d0c..4105df74f2b0 100644 --- a/drivers/extcon/extcon-gpio.c +++ b/drivers/extcon/extcon-gpio.c @@ -9,6 +9,7 @@ * (originally switch class is supported) */ +#include #include #include #include @@ -112,7 +113,9 @@ static int gpio_extcon_probe(struct platform_device *pdev) if (ret < 0) return ret; - INIT_DELAYED_WORK(&data->work, gpio_extcon_work); + ret = devm_delayed_work_autocancel(dev, &data->work, gpio_extcon_work); + if (ret) + return ret; /* * Request the interrupt of gpio to detect whether external connector @@ -131,15 +134,6 @@ static int gpio_extcon_probe(struct platform_device *pdev) return 0; } -static int gpio_extcon_remove(struct platform_device *pdev) -{ - struct gpio_extcon_data *data = platform_get_drvdata(pdev); - - cancel_delayed_work_sync(&data->work); - - return 0; -} - #ifdef CONFIG_PM_SLEEP static int gpio_extcon_resume(struct device *dev) { @@ -158,7 +152,6 @@ static SIMPLE_DEV_PM_OPS(gpio_extcon_pm_ops, NULL, gpio_extcon_resume); static struct platform_driver gpio_extcon_driver = { .probe = gpio_extcon_probe, - .remove = gpio_extcon_remove, .driver = { .name = "extcon-gpio", .pm = &gpio_extcon_pm_ops, diff --git a/drivers/extcon/extcon-intel-int3496.c b/drivers/extcon/extcon-intel-int3496.c index 80c9abcc3f97..fb527c23639e 100644 --- a/drivers/extcon/extcon-intel-int3496.c +++ b/drivers/extcon/extcon-intel-int3496.c @@ -11,6 +11,7 @@ */ #include +#include #include #include #include @@ -101,7 +102,9 @@ static int int3496_probe(struct platform_device *pdev) return -ENOMEM; data->dev = dev; - INIT_DELAYED_WORK(&data->work, int3496_do_usb_id); + ret = devm_delayed_work_autocancel(dev, &data->work, int3496_do_usb_id); + if (ret) + return ret; data->gpio_usb_id = devm_gpiod_get(dev, "id", GPIOD_IN); if (IS_ERR(data->gpio_usb_id)) { @@ -155,16 +158,6 @@ static int int3496_probe(struct platform_device *pdev) return 0; } -static int int3496_remove(struct platform_device *pdev) -{ - struct int3496_data *data = platform_get_drvdata(pdev); - - devm_free_irq(&pdev->dev, data->usb_id_irq, data); - cancel_delayed_work_sync(&data->work); - - return 0; -} - static const struct acpi_device_id int3496_acpi_match[] = { { "INT3496" }, { } @@ -177,7 +170,6 @@ static struct platform_driver int3496_driver = { .acpi_match_table = int3496_acpi_match, }, .probe = int3496_probe, - .remove = int3496_remove, }; module_platform_driver(int3496_driver); diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c index a2852bcc5f0d..d2c1a8b89c08 100644 --- a/drivers/extcon/extcon-palmas.c +++ b/drivers/extcon/extcon-palmas.c @@ -9,6 +9,7 @@ * Author: Hema HK */ +#include #include #include #include @@ -237,7 +238,11 @@ static int palmas_usb_probe(struct platform_device *pdev) palmas_usb->sw_debounce_jiffies = msecs_to_jiffies(debounce); } - INIT_DELAYED_WORK(&palmas_usb->wq_detectid, palmas_gpio_id_detect); + status = devm_delayed_work_autocancel(&pdev->dev, + &palmas_usb->wq_detectid, + palmas_gpio_id_detect); + if (status) + return status; palmas->usb = palmas_usb; palmas_usb->palmas = palmas; @@ -359,15 +364,6 @@ static int palmas_usb_probe(struct platform_device *pdev) return 0; } -static int palmas_usb_remove(struct platform_device *pdev) -{ - struct palmas_usb *palmas_usb = platform_get_drvdata(pdev); - - cancel_delayed_work_sync(&palmas_usb->wq_detectid); - - return 0; -} - #ifdef CONFIG_PM_SLEEP static int palmas_usb_suspend(struct device *dev) { @@ -422,7 +418,6 @@ static const struct of_device_id of_palmas_match_tbl[] = { static struct platform_driver palmas_usb_driver = { .probe = palmas_usb_probe, - .remove = palmas_usb_remove, .driver = { .name = "palmas-usb", .of_match_table = of_palmas_match_tbl, 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,