From mboxrd@z Thu Jan 1 00:00:00 1970 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,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 965F0C43214 for ; Tue, 31 Aug 2021 10:11:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7DA1660ED4 for ; Tue, 31 Aug 2021 10:11:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240898AbhHaKMW (ORCPT ); Tue, 31 Aug 2021 06:12:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240883AbhHaKMU (ORCPT ); Tue, 31 Aug 2021 06:12:20 -0400 Received: from mail-yb1-xb2c.google.com (mail-yb1-xb2c.google.com [IPv6:2607:f8b0:4864:20::b2c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 789ECC061760 for ; Tue, 31 Aug 2021 03:11:25 -0700 (PDT) Received: by mail-yb1-xb2c.google.com with SMTP id z18so33782616ybg.8 for ; Tue, 31 Aug 2021 03:11:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Euvaq+g0tY7RjoHZfXjeT8BwGAPATqwa9RvQNSUth7A=; b=h5BMK3FLAt8Dn4Hntcw7B5P7PMwzmuZqb0qpIorzfxOuDOvqg4Z+3s+OVcV3pX1USs DwXJPrG/zDG3AXLzZOd2mDHnC9jbXcASBD4MDXzGmllH5+X7KJKOqFcfrZUsyR7oY5k/ 7Zz6W65IRPrR7tVIhl4j5eNbqlwdnVxNtg616q8HSHlkzRNpdquRyPoJWn0GyRzUp2E2 WKNmhTkW6o9UJBLGfVY/NcnL2mz4o9HZQmRJOhw2I6hvGjbvgEHGMCtR47ddWrLlVZ3C zIMFcQvYr6f7sqDGehJGiextNSxkcwh3/ryScWU4FiFH8Qgi9Hrz3OJFR2waFzY9sRlf gwPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Euvaq+g0tY7RjoHZfXjeT8BwGAPATqwa9RvQNSUth7A=; b=MmcK5BC6TBijUIM/KkGgabjmZoF+VCgfG1HS1prFrLhU93hD1MPmsQXmrMtpj0VoEv X5rT9UgRn2KCe5+fQICxM5sUi2jtIDTaMUnVaTcwtgnkSRy2lBDAkIfiFlx/9CPnmGVn NRd30kTgN6+cWqjFO2WMRzsNdYnqtCBHZtbTRcDdoNck3oXCKl/U3ghElxVK/XGXxoM0 RujTXw7eEbxVIJfhEIWBVp2HTYdSYxF57QnQmZPvwerrBSstEuOVLljSv+5M9s8GhGxs PQyxaMLhUFiyEDPaj/SkyYvr0hafpJXH5qqhAp04kau34Rxa5rE8o3E0xP0//NlYzfxZ iiPw== X-Gm-Message-State: AOAM53042dIJXeuUw7Qcux5ttXXgekemweJDSJRLEVOXe704ajybEkzR 1TUogyh1l9KQvipsZJUxhI9zkvq474Ae3nLww3dDZw== X-Google-Smtp-Source: ABdhPJzOhsBzuj9Qu0IwBiI643w/tDEioYa0Ma8MGFW2IU+AtZqLzQFgXxDfsUwVFf/Ha58G+vHpvWq+G41Q6bHtZEg= X-Received: by 2002:a25:e70a:: with SMTP id e10mr27471979ybh.302.1630404684772; Tue, 31 Aug 2021 03:11:24 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Bartosz Golaszewski Date: Tue, 31 Aug 2021 12:11:14 +0200 Message-ID: Subject: Re: [PATCH 3/3] gpio: mpc8xxx: Use 'devm_gpiochip_add_data()' to simplify the code and avoid a leak To: Christophe JAILLET Cc: Linus Walleij , alexandru.marginean@nxp.com, Laurentiu.Tudor@nxp.com, Hui Song , Andy Shevchenko , Ran Wang , linux-gpio , LKML , kernel-janitors Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 20, 2021 at 5:38 PM Christophe JAILLET wrote: > > If an error occurs after a 'gpiochip_add_data()' call it must be undone by > a corresponding 'gpiochip_remove()' as already done in the remove function. > > To simplify the code a fix a leak in the error handling path of the probe, > use the managed version instead (i.e. 'devm_gpiochip_add_data()') > > Fixes: 698b8eeaed72 ("gpio/mpc8xxx: change irq handler from chained to normal") > Signed-off-by: Christophe JAILLET > --- > drivers/gpio/gpio-mpc8xxx.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c > index fa4aaeced3f1..70d6ae20b1da 100644 > --- a/drivers/gpio/gpio-mpc8xxx.c > +++ b/drivers/gpio/gpio-mpc8xxx.c > @@ -380,7 +380,7 @@ static int mpc8xxx_probe(struct platform_device *pdev) > is_acpi_node(fwnode)) > gc->write_reg(mpc8xxx_gc->regs + GPIO_IBE, 0xffffffff); > > - ret = gpiochip_add_data(gc, mpc8xxx_gc); > + ret = devm_gpiochip_add_data(&pdev->dev, gc, mpc8xxx_gc); > if (ret) { > dev_err(&pdev->dev, > "GPIO chip registration failed with status %d\n", ret); > @@ -429,8 +429,6 @@ static int mpc8xxx_remove(struct platform_device *pdev) > irq_domain_remove(mpc8xxx_gc->irq); > } > > - gpiochip_remove(&mpc8xxx_gc->gc); > - > return 0; > } > > -- > 2.30.2 > Applied, thanks! Bart