From patchwork Fri Feb 10 14:56:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 652788 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AFE34C636CD for ; Fri, 10 Feb 2023 14:56:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231882AbjBJO4X (ORCPT ); Fri, 10 Feb 2023 09:56:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232234AbjBJO4W (ORCPT ); Fri, 10 Feb 2023 09:56:22 -0500 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B91E16C7E0; Fri, 10 Feb 2023 06:56:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1676040981; x=1707576981; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yF1vTEf/Cj8uQR7zMwL8EK6cJrGK3YEQj9wTzr3teZY=; b=jMwb+tGZAL8NsfFwug+rpel8CS6Z/fq183wcwW9Q+bI4zV8qjnHydieQ VJmg1dxtO5dnqvX6226AkrbpLAUPqaAB0vDuI9OfjD+IQGxAV3VJG3B/k PxXj+m/9CPt4I+r1zIx2CB1Q+ZlvGFAcHAtSR4BIYNMFvd7quJk6lzzIz e6RtdrFkK438ldF1H1lKnEevW0CkEmmTBhDqX5odmrRnu0dJtn5YLQGzg ffDJvUylJtaM9ovTsnbIxTJ1dI2y2KdVPmSB/4Py5yPGr26GyhfkFesWW 79VhunVPLAM1OlTK1S3TXU117GLDnON5Aq84U9e+A6bL+oY37AxA+fkby A==; X-IronPort-AV: E=McAfee;i="6500,9779,10617"; a="357836316" X-IronPort-AV: E=Sophos;i="5.97,287,1669104000"; d="scan'208";a="357836316" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2023 06:56:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10617"; a="668079982" X-IronPort-AV: E=Sophos;i="5.97,287,1669104000"; d="scan'208";a="668079982" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 10 Feb 2023 06:56:18 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id DD30F1A6; Fri, 10 Feb 2023 16:56:57 +0200 (EET) From: Andy Shevchenko To: linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ludovic Desroches , Linus Walleij , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Andy Shevchenko Subject: [PATCH v1 1/5] pinctrl: at91: use devm_kasprintf() to avoid potential leaks (part 2) Date: Fri, 10 Feb 2023 16:56:52 +0200 Message-Id: <20230210145656.71838-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> References: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Use devm_kasprintf() instead of kasprintf() to avoid any potential leaks. At the moment drivers have no remove functionality hence there is no need for fixes tag. While at it, switch to use devm_kasprintf_strarray(). Signed-off-by: Andy Shevchenko --- drivers/pinctrl/pinctrl-at91.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 735c501e7a06..bb93d8bcfd08 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -18,6 +18,7 @@ #include #include #include +#include /* Since we request GPIOs from ourself */ #include @@ -1371,6 +1372,7 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev, static int at91_pinctrl_probe(struct platform_device *pdev) { + struct device *dev = &pdev->dev; struct at91_pinctrl *info; struct pinctrl_pin_desc *pdesc; int ret, i, j, k; @@ -1394,9 +1396,19 @@ static int at91_pinctrl_probe(struct platform_device *pdev) return -ENOMEM; for (i = 0, k = 0; i < gpio_banks; i++) { + char **pin_names; + + pin_names = devm_kasprintf_strarray(dev, "pio", MAX_NB_GPIO_PER_BANK); + if (!names) + return -ENOMEM; + for (j = 0; j < MAX_NB_GPIO_PER_BANK; j++, k++) { + char *pin_name = pin_names[j]; + + strreplace(pin_name, '-', i + 'A'); + pdesc->number = k; - pdesc->name = kasprintf(GFP_KERNEL, "pio%c%d", i + 'A', j); + pdesc->name = pin_name; pdesc++; } } @@ -1797,7 +1809,8 @@ static const struct of_device_id at91_gpio_of_match[] = { static int at91_gpio_probe(struct platform_device *pdev) { - struct device_node *np = pdev->dev.of_node; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; struct at91_gpio_chip *at91_chip = NULL; struct gpio_chip *chip; struct pinctrl_gpio_range *range; @@ -1866,16 +1879,14 @@ static int at91_gpio_probe(struct platform_device *pdev) chip->ngpio = ngpio; } - names = devm_kcalloc(&pdev->dev, chip->ngpio, sizeof(char *), - GFP_KERNEL); - + names = devm_kasprintf_strarray(dev, "pio", chip->ngpio); if (!names) { ret = -ENOMEM; goto clk_enable_err; } for (i = 0; i < chip->ngpio; i++) - names[i] = devm_kasprintf(&pdev->dev, GFP_KERNEL, "pio%c%d", alias_idx + 'A', i); + strreplace('-', alias_idx + 'A'); chip->names = (const char *const *)names; From patchwork Fri Feb 10 14:56:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 652545 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 781F0C636CD for ; Fri, 10 Feb 2023 14:56:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232519AbjBJO4Z (ORCPT ); Fri, 10 Feb 2023 09:56:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48362 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232516AbjBJO4Y (ORCPT ); Fri, 10 Feb 2023 09:56:24 -0500 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4AE0B6C7C1; Fri, 10 Feb 2023 06:56:23 -0800 (PST) DKIM-Signature: v=1; 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d="scan'208";a="668079984" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga002.jf.intel.com with ESMTP; 10 Feb 2023 06:56:18 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id EAE95210; Fri, 10 Feb 2023 16:56:57 +0200 (EET) From: Andy Shevchenko To: linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ludovic Desroches , Linus Walleij , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Andy Shevchenko Subject: [PATCH v1 2/5] pinctrl: at91: Don't mix non-devm calls with devm ones Date: Fri, 10 Feb 2023 16:56:53 +0200 Message-Id: <20230210145656.71838-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> References: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Replace devm_clk_get() by devm_clk_get_enabled() and drop unneeded code pieces. This will make sure we keep the ordering of the resource allocation correct. Signed-off-by: Andy Shevchenko --- drivers/pinctrl/pinctrl-at91.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index bb93d8bcfd08..6d5ebdae0bf9 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1849,19 +1849,13 @@ static int at91_gpio_probe(struct platform_device *pdev) at91_chip->pioc_virq = irq; at91_chip->pioc_idx = alias_idx; - at91_chip->clock = devm_clk_get(&pdev->dev, NULL); + at91_chip->clock = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(at91_chip->clock)) { dev_err(&pdev->dev, "failed to get clock, ignoring.\n"); ret = PTR_ERR(at91_chip->clock); goto err; } - ret = clk_prepare_enable(at91_chip->clock); - if (ret) { - dev_err(&pdev->dev, "failed to prepare and enable clock, ignoring.\n"); - goto clk_enable_err; - } - at91_chip->chip = at91_gpio_template; at91_chip->id = alias_idx; @@ -1882,7 +1876,7 @@ static int at91_gpio_probe(struct platform_device *pdev) names = devm_kasprintf_strarray(dev, "pio", chip->ngpio); if (!names) { ret = -ENOMEM; - goto clk_enable_err; + goto err; } for (i = 0; i < chip->ngpio; i++) @@ -1915,8 +1909,6 @@ static int at91_gpio_probe(struct platform_device *pdev) return 0; gpiochip_add_err: -clk_enable_err: - clk_disable_unprepare(at91_chip->clock); err: dev_err(&pdev->dev, "Failure %i for GPIO %i\n", ret, alias_idx); From patchwork Fri Feb 10 14:56:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 652786 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4B69C636D7 for ; Fri, 10 Feb 2023 14:56:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232529AbjBJO40 (ORCPT ); Fri, 10 Feb 2023 09:56:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232234AbjBJO4Y (ORCPT ); Fri, 10 Feb 2023 09:56:24 -0500 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB7C36C7E0; Fri, 10 Feb 2023 06:56:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1676040983; x=1707576983; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=o+AkmZ/j0Ltm2vhm8z9qz/CNnGgU1gRksq4fGSdRq2A=; b=ZRAVI9lZewkGovCvJFA4ELxbEj7yNcislun+FbR2mWA3NF5s/oyleXo4 PnOsYPkexDk258+v7jjl84c8EwcUP2o9kkk10zKrmLOUKXqSfE6QpU+KD T85pNX3pTBK5DhwAySm4DGc8TD+AY3xOUTvAmirM+x5YzMFTNpmiZ5t9F dZ3pCYtoCZE9DblHapwkrq9GN3QkTMyGa8JyHhrTw9khRVFypTZOY0i6Z iiZIXyqESEgPaaKwjuB+sHSDB4HscaY4BqiHTI548zgqV7adXdd3Y8HDR Avo0Fv3yc1x53lqqvCa0TKWoaYyo5N06DTPrSdT/4x+an3Fz0jLAexbJV w==; X-IronPort-AV: E=McAfee;i="6500,9779,10617"; a="395041588" X-IronPort-AV: E=Sophos;i="5.97,287,1669104000"; d="scan'208";a="395041588" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2023 06:56:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10617"; a="776953052" X-IronPort-AV: E=Sophos;i="5.97,287,1669104000"; d="scan'208";a="776953052" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga002.fm.intel.com with ESMTP; 10 Feb 2023 06:56:19 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id EFF961F8; Fri, 10 Feb 2023 16:56:57 +0200 (EET) From: Andy Shevchenko To: linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ludovic Desroches , Linus Walleij , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Andy Shevchenko Subject: [PATCH v1 3/5] pinctrl: at91: Use of_device_get_match_data() Date: Fri, 10 Feb 2023 16:56:54 +0200 Message-Id: <20230210145656.71838-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> References: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Use of_device_get_match_data() to simplify the code. Signed-off-by: Andy Shevchenko --- drivers/pinctrl/pinctrl-at91.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 6d5ebdae0bf9..203a29ad9344 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1304,8 +1304,7 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev, return -ENODEV; info->dev = &pdev->dev; - info->ops = (const struct at91_pinctrl_mux_ops *) - of_match_device(at91_pinctrl_of_match, &pdev->dev)->data; + info->ops = of_device_get_match_data(dev); at91_pinctrl_child_count(info, np); /* @@ -1844,8 +1843,7 @@ static int at91_gpio_probe(struct platform_device *pdev) goto err; } - at91_chip->ops = (const struct at91_pinctrl_mux_ops *) - of_match_device(at91_gpio_of_match, &pdev->dev)->data; + at91_chip->ops = of_device_get_match_data(dev); at91_chip->pioc_virq = irq; at91_chip->pioc_idx = alias_idx; From patchwork Fri Feb 10 14:56:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 652787 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A14AC636D4 for ; Fri, 10 Feb 2023 14:56:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232348AbjBJO4Y (ORCPT ); Fri, 10 Feb 2023 09:56:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232505AbjBJO4X (ORCPT ); Fri, 10 Feb 2023 09:56:23 -0500 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60B0C6C7D2; Fri, 10 Feb 2023 06:56:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1676040982; x=1707576982; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=S5CRSmT8K9GvBmi5rjBq6cSRiB9PaGnL3gOxhpG0i+4=; b=grt4cNHfaxyJlkx5IBy4lPX1l1V2E1eLxiuNG0iEO0q9p5OyGDJaOKsN j+vbtFJsxBn89v6XBvCduoi969N/xJo4PTb1Q+HCqdBkV/WJrJptoYgAq bTNY19KGrSwc3P38XQeeSJWjCB6mQ8angOWYpes8zzbW5c5GZci4/F20A 5RooiyUy8YeTWd0xC/lgPCUb7bXxFpupmmWwsuZ/FrPCJfixfSoG1CPSP ls7YdiRvrhDFSxL68XPrCKHXeqBYgBmjPIYM8OnNHHaquU4hM+My96O8q fnhWuCOV1nHgB+bPzRz5PoYzMU8ZUgC9nkg5RP5QXyUKTLiTLgbvDSnba g==; X-IronPort-AV: E=McAfee;i="6500,9779,10617"; a="395041591" X-IronPort-AV: E=Sophos;i="5.97,287,1669104000"; d="scan'208";a="395041591" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Feb 2023 06:56:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10617"; a="776953053" X-IronPort-AV: E=Sophos;i="5.97,287,1669104000"; d="scan'208";a="776953053" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga002.fm.intel.com with ESMTP; 10 Feb 2023 06:56:19 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 0FD05269; Fri, 10 Feb 2023 16:56:58 +0200 (EET) From: Andy Shevchenko To: linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ludovic Desroches , Linus Walleij , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Andy Shevchenko Subject: [PATCH v1 4/5] pinctrl: at91: Use dev_err_probe() instead of custom messaging Date: Fri, 10 Feb 2023 16:56:55 +0200 Message-Id: <20230210145656.71838-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> References: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The custom message has no value except printing the error code, the same does dev_err_probe(). Let's use the latter for the sake of unification. Note that some APIs already have messaging in them and some simply do not require the current noise. Signed-off-by: Andy Shevchenko --- drivers/pinctrl/pinctrl-at91.c | 64 +++++++++++----------------------- 1 file changed, 21 insertions(+), 43 deletions(-) diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 203a29ad9344..797382a237e8 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1294,10 +1294,11 @@ static const struct of_device_id at91_pinctrl_of_match[] = { static int at91_pinctrl_probe_dt(struct platform_device *pdev, struct at91_pinctrl *info) { + struct device *dev = &pdev->dev; int ret = 0; int i, j, ngpio_chips_enabled = 0; uint32_t *tmp; - struct device_node *np = pdev->dev.of_node; + struct device_node *np = dev->of_node; struct device_node *child; if (!np) @@ -1360,9 +1361,8 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev, continue; ret = at91_pinctrl_parse_functions(child, info, i++); if (ret) { - dev_err(&pdev->dev, "failed to parse function\n"); of_node_put(child); - return ret; + return dev_err_probe(dev, ret, "failed to parse function\n"); } } @@ -1415,11 +1415,8 @@ static int at91_pinctrl_probe(struct platform_device *pdev) platform_set_drvdata(pdev, info); info->pctl = devm_pinctrl_register(&pdev->dev, &at91_pinctrl_desc, info); - - if (IS_ERR(info->pctl)) { - dev_err(&pdev->dev, "could not register AT91 pinctrl driver\n"); - return PTR_ERR(info->pctl); - } + if (IS_ERR(info->pctl)) + return dev_err_probe(dev, PTR_ERR(info->pctl), "could not register AT91 pinctrl driver\n"); /* We will handle a range of GPIO pins */ for (i = 0; i < gpio_banks; i++) @@ -1820,39 +1817,28 @@ static int at91_gpio_probe(struct platform_device *pdev) char **names; BUG_ON(alias_idx >= ARRAY_SIZE(gpio_chips)); - if (gpio_chips[alias_idx]) { - ret = -EBUSY; - goto err; - } + if (gpio_chips[alias_idx]) + return dev_err_probe(dev, -EBUSY, "%d slot is occupied.\n", alias_idx); irq = platform_get_irq(pdev, 0); - if (irq < 0) { - ret = irq; - goto err; - } + if (irq < 0) + return irq; at91_chip = devm_kzalloc(&pdev->dev, sizeof(*at91_chip), GFP_KERNEL); - if (!at91_chip) { - ret = -ENOMEM; - goto err; - } + if (!at91_chip) + return -ENOMEM; at91_chip->regbase = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(at91_chip->regbase)) { - ret = PTR_ERR(at91_chip->regbase); - goto err; - } + if (IS_ERR(at91_chip->regbase)) + return PTR_ERR(at91_chip->regbase); at91_chip->ops = of_device_get_match_data(dev); at91_chip->pioc_virq = irq; at91_chip->pioc_idx = alias_idx; at91_chip->clock = devm_clk_get_enabled(&pdev->dev, NULL); - if (IS_ERR(at91_chip->clock)) { - dev_err(&pdev->dev, "failed to get clock, ignoring.\n"); - ret = PTR_ERR(at91_chip->clock); - goto err; - } + if (IS_ERR(at91_chip->clock)) + return dev_err_probe(dev, PTR_ERR(at91_chip->clock), "failed to get clock, ignoring.\n"); at91_chip->chip = at91_gpio_template; at91_chip->id = alias_idx; @@ -1865,17 +1851,15 @@ static int at91_gpio_probe(struct platform_device *pdev) if (!of_property_read_u32(np, "#gpio-lines", &ngpio)) { if (ngpio >= MAX_NB_GPIO_PER_BANK) - pr_err("at91_gpio.%d, gpio-nb >= %d failback to %d\n", - alias_idx, MAX_NB_GPIO_PER_BANK, MAX_NB_GPIO_PER_BANK); + dev_err(dev, "at91_gpio.%d, gpio-nb >= %d failback to %d\n", + alias_idx, MAX_NB_GPIO_PER_BANK, MAX_NB_GPIO_PER_BANK); else chip->ngpio = ngpio; } names = devm_kasprintf_strarray(dev, "pio", chip->ngpio); - if (!names) { - ret = -ENOMEM; - goto err; - } + if (!names) + return -ENOMEM; for (i = 0; i < chip->ngpio; i++) strreplace('-', alias_idx + 'A'); @@ -1892,11 +1876,11 @@ static int at91_gpio_probe(struct platform_device *pdev) ret = at91_gpio_of_irq_setup(pdev, at91_chip); if (ret) - goto gpiochip_add_err; + return ret; ret = gpiochip_add_data(chip, at91_chip); if (ret) - goto gpiochip_add_err; + return ret; gpio_chips[alias_idx] = at91_chip; platform_set_drvdata(pdev, at91_chip); @@ -1905,12 +1889,6 @@ static int at91_gpio_probe(struct platform_device *pdev) dev_info(&pdev->dev, "at address %p\n", at91_chip->regbase); return 0; - -gpiochip_add_err: -err: - dev_err(&pdev->dev, "Failure %i for GPIO %i\n", ret, alias_idx); - - return ret; } static const struct dev_pm_ops at91_gpio_pm_ops = { From patchwork Fri Feb 10 14:56:56 2023 Content-Type: text/plain; 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10 Feb 2023 06:56:22 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 210C0252; Fri, 10 Feb 2023 16:56:58 +0200 (EET) From: Andy Shevchenko To: linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Ludovic Desroches , Linus Walleij , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Andy Shevchenko Subject: [PATCH v1 5/5] pinctrl: at91: Utilise temporary variable for struct device Date: Fri, 10 Feb 2023 16:56:56 +0200 Message-Id: <20230210145656.71838-6-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> References: <20230210145656.71838-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org We have a temporary variable to keep pointer to struct device. Utilise it inside the ->probe() implementation. Signed-off-by: Andy Shevchenko --- drivers/pinctrl/pinctrl-at91.c | 63 +++++++++++++++------------------- 1 file changed, 27 insertions(+), 36 deletions(-) diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 797382a237e8..f57781c2786a 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1304,7 +1304,7 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev, if (!np) return -ENODEV; - info->dev = &pdev->dev; + info->dev = dev; info->ops = of_device_get_match_data(dev); at91_pinctrl_child_count(info, np); @@ -1324,35 +1324,30 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev, if (ret) return ret; - dev_dbg(&pdev->dev, "nmux = %d\n", info->nmux); + dev_dbg(dev, "nmux = %d\n", info->nmux); - dev_dbg(&pdev->dev, "mux-mask\n"); + dev_dbg(dev, "mux-mask\n"); tmp = info->mux_mask; for (i = 0; i < gpio_banks; i++) { - for (j = 0; j < info->nmux; j++, tmp++) { - dev_dbg(&pdev->dev, "%d:%d\t0x%x\n", i, j, tmp[0]); - } + for (j = 0; j < info->nmux; j++, tmp++) + dev_dbg(dev, "%d:%d\t0x%x\n", i, j, tmp[0]); } - dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions); - dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups); - info->functions = devm_kcalloc(&pdev->dev, - info->nfunctions, - sizeof(struct at91_pmx_func), - GFP_KERNEL); + dev_dbg(dev, "nfunctions = %d\n", info->nfunctions); + dev_dbg(dev, "ngroups = %d\n", info->ngroups); + info->functions = devm_kcalloc(dev, info->nfunctions, sizeof(*info->functions), + GFP_KERNEL); if (!info->functions) return -ENOMEM; - info->groups = devm_kcalloc(&pdev->dev, - info->ngroups, - sizeof(struct at91_pin_group), - GFP_KERNEL); + info->groups = devm_kcalloc(dev, info->ngroups, sizeof(*info->groups), + GFP_KERNEL); if (!info->groups) return -ENOMEM; - dev_dbg(&pdev->dev, "nbanks = %d\n", gpio_banks); - dev_dbg(&pdev->dev, "nfunctions = %d\n", info->nfunctions); - dev_dbg(&pdev->dev, "ngroups = %d\n", info->ngroups); + dev_dbg(dev, "nbanks = %d\n", gpio_banks); + dev_dbg(dev, "nfunctions = %d\n", info->nfunctions); + dev_dbg(dev, "ngroups = %d\n", info->ngroups); i = 0; @@ -1376,7 +1371,7 @@ static int at91_pinctrl_probe(struct platform_device *pdev) struct pinctrl_pin_desc *pdesc; int ret, i, j, k; - info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; @@ -1384,13 +1379,10 @@ static int at91_pinctrl_probe(struct platform_device *pdev) if (ret) return ret; - at91_pinctrl_desc.name = dev_name(&pdev->dev); + at91_pinctrl_desc.name = dev_name(dev); at91_pinctrl_desc.npins = gpio_banks * MAX_NB_GPIO_PER_BANK; at91_pinctrl_desc.pins = pdesc = - devm_kcalloc(&pdev->dev, - at91_pinctrl_desc.npins, sizeof(*pdesc), - GFP_KERNEL); - + devm_kcalloc(dev, at91_pinctrl_desc.npins, sizeof(*pdesc), GFP_KERNEL); if (!at91_pinctrl_desc.pins) return -ENOMEM; @@ -1413,8 +1405,7 @@ static int at91_pinctrl_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, info); - info->pctl = devm_pinctrl_register(&pdev->dev, &at91_pinctrl_desc, - info); + info->pctl = devm_pinctrl_register(dev, &at91_pinctrl_desc, info); if (IS_ERR(info->pctl)) return dev_err_probe(dev, PTR_ERR(info->pctl), "could not register AT91 pinctrl driver\n"); @@ -1423,7 +1414,7 @@ static int at91_pinctrl_probe(struct platform_device *pdev) if (gpio_chips[i]) pinctrl_add_gpio_range(info->pctl, &gpio_chips[i]->range); - dev_info(&pdev->dev, "initialized AT91 pinctrl driver\n"); + dev_info(dev, "initialized AT91 pinctrl driver\n"); return 0; } @@ -1714,6 +1705,7 @@ static void gpio_irq_handler(struct irq_desc *desc) static int at91_gpio_of_irq_setup(struct platform_device *pdev, struct at91_gpio_chip *at91_gpio) { + struct device *dev = &pdev->dev; struct gpio_chip *gpiochip_prev = NULL; struct at91_gpio_chip *prev = NULL; struct irq_data *d = irq_get_irq_data(at91_gpio->pioc_virq); @@ -1721,8 +1713,7 @@ static int at91_gpio_of_irq_setup(struct platform_device *pdev, struct gpio_irq_chip *girq; int i; - gpio_irqchip = devm_kzalloc(&pdev->dev, sizeof(*gpio_irqchip), - GFP_KERNEL); + gpio_irqchip = devm_kzalloc(dev, sizeof(*gpio_irqchip), GFP_KERNEL); if (!gpio_irqchip) return -ENOMEM; @@ -1758,7 +1749,7 @@ static int at91_gpio_of_irq_setup(struct platform_device *pdev, if (!gpiochip_prev) { girq->parent_handler = gpio_irq_handler; girq->num_parents = 1; - girq->parents = devm_kcalloc(&pdev->dev, 1, + girq->parents = devm_kcalloc(dev, girq->num_parents, sizeof(*girq->parents), GFP_KERNEL); if (!girq->parents) @@ -1824,7 +1815,7 @@ static int at91_gpio_probe(struct platform_device *pdev) if (irq < 0) return irq; - at91_chip = devm_kzalloc(&pdev->dev, sizeof(*at91_chip), GFP_KERNEL); + at91_chip = devm_kzalloc(dev, sizeof(*at91_chip), GFP_KERNEL); if (!at91_chip) return -ENOMEM; @@ -1836,7 +1827,7 @@ static int at91_gpio_probe(struct platform_device *pdev) at91_chip->pioc_virq = irq; at91_chip->pioc_idx = alias_idx; - at91_chip->clock = devm_clk_get_enabled(&pdev->dev, NULL); + at91_chip->clock = devm_clk_get_enabled(dev, NULL); if (IS_ERR(at91_chip->clock)) return dev_err_probe(dev, PTR_ERR(at91_chip->clock), "failed to get clock, ignoring.\n"); @@ -1844,8 +1835,8 @@ static int at91_gpio_probe(struct platform_device *pdev) at91_chip->id = alias_idx; chip = &at91_chip->chip; - chip->label = dev_name(&pdev->dev); - chip->parent = &pdev->dev; + chip->label = dev_name(dev); + chip->parent = dev; chip->owner = THIS_MODULE; chip->base = alias_idx * MAX_NB_GPIO_PER_BANK; @@ -1886,7 +1877,7 @@ static int at91_gpio_probe(struct platform_device *pdev) platform_set_drvdata(pdev, at91_chip); gpio_banks = max(gpio_banks, alias_idx + 1); - dev_info(&pdev->dev, "at address %p\n", at91_chip->regbase); + dev_info(dev, "at address %p\n", at91_chip->regbase); return 0; }