From patchwork Tue Dec 10 23:43:15 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 3321171 Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EE5F39F37C for ; Tue, 10 Dec 2013 23:44:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1415220119 for ; Tue, 10 Dec 2013 23:44:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 150CE206AF for ; Tue, 10 Dec 2013 23:44:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751623Ab3LJXoO (ORCPT ); Tue, 10 Dec 2013 18:44:14 -0500 Received: from smtp.codeaurora.org ([198.145.11.231]:38985 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751236Ab3LJXnU (ORCPT ); Tue, 10 Dec 2013 18:43:20 -0500 Received: from smtp.codeaurora.org (localhost [127.0.0.1]) by smtp.codeaurora.org (Postfix) with ESMTP id 38D1713F309; Tue, 10 Dec 2013 23:43:20 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 486) id 2BC9813F31F; Tue, 10 Dec 2013 23:43:20 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from sboyd-linux.qualcomm.com (i-global252.qualcomm.com [199.106.103.252]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: sboyd@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5790513F309; Tue, 10 Dec 2013 23:43:19 +0000 (UTC) From: Stephen Boyd To: Dmitry Torokhov Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org Subject: [PATCH 6/7] Input: pmic8xxx-keypad - Migrate to devm_* APIs Date: Tue, 10 Dec 2013 15:43:15 -0800 Message-Id: <1386718996-3733-7-git-send-email-sboyd@codeaurora.org> X-Mailer: git-send-email 1.8.5.1.109.g3d252a9 In-Reply-To: <1386718996-3733-1-git-send-email-sboyd@codeaurora.org> References: <1386718996-3733-1-git-send-email-sboyd@codeaurora.org> X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Simplify the error paths and reduce the lines of code in this driver by using the devm_* APIs. Signed-off-by: Stephen Boyd --- drivers/input/keyboard/pmic8xxx-keypad.c | 62 +++++++++----------------------- 1 file changed, 17 insertions(+), 45 deletions(-) diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c index 2c9f19a..4e6bfbf 100644 --- a/drivers/input/keyboard/pmic8xxx-keypad.c +++ b/drivers/input/keyboard/pmic8xxx-keypad.c @@ -586,7 +586,7 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev) return -EINVAL; } - kp = kzalloc(sizeof(*kp), GFP_KERNEL); + kp = devm_kzalloc(&pdev->dev, sizeof(*kp), GFP_KERNEL); if (!kp) return -ENOMEM; @@ -595,32 +595,27 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev) kp->pdata = pdata; kp->dev = &pdev->dev; - kp->input = input_allocate_device(); + kp->input = devm_input_allocate_device(&pdev->dev); if (!kp->input) { dev_err(&pdev->dev, "unable to allocate input device\n"); - rc = -ENOMEM; - goto err_alloc_device; + return -ENOMEM; } kp->key_sense_irq = platform_get_irq(pdev, 0); if (kp->key_sense_irq < 0) { dev_err(&pdev->dev, "unable to get keypad sense irq\n"); - rc = -ENXIO; - goto err_get_irq; + return kp->key_sense_irq; } kp->key_stuck_irq = platform_get_irq(pdev, 1); if (kp->key_stuck_irq < 0) { dev_err(&pdev->dev, "unable to get keypad stuck irq\n"); - rc = -ENXIO; - goto err_get_irq; + return kp->key_stuck_irq; } kp->input->name = pdata->input_name ? : "PMIC8XXX keypad"; kp->input->phys = pdata->input_phys_device ? : "pmic8xxx_keypad/input0"; - kp->input->dev.parent = &pdev->dev; - kp->input->id.bustype = BUS_I2C; kp->input->id.version = 0x0001; kp->input->id.product = 0x0001; @@ -634,7 +629,7 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev) kp->keycodes, kp->input); if (rc) { dev_err(&pdev->dev, "failed to build keymap\n"); - goto err_get_irq; + return rc; } if (pdata->rep) @@ -650,7 +645,7 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev) rc = pmic8xxx_kpd_init(kp); if (rc < 0) { dev_err(&pdev->dev, "unable to initialize keypad controller\n"); - goto err_get_irq; + return rc; } rc = pmic8xxx_kp_config_gpio(pdata->cols_gpio_start, @@ -667,24 +662,26 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev) goto err_gpio_config; } - rc = request_any_context_irq(kp->key_sense_irq, pmic8xxx_kp_irq, - IRQF_TRIGGER_RISING, "pmic-keypad", kp); + rc = devm_request_any_context_irq(&pdev->dev, kp->key_sense_irq, + pmic8xxx_kp_irq, IRQF_TRIGGER_RISING, "pmic-keypad", + kp); if (rc < 0) { dev_err(&pdev->dev, "failed to request keypad sense irq\n"); - goto err_get_irq; + return rc; } - rc = request_any_context_irq(kp->key_stuck_irq, pmic8xxx_kp_stuck_irq, - IRQF_TRIGGER_RISING, "pmic-keypad-stuck", kp); + rc = devm_request_any_context_irq(&pdev->dev, kp->key_stuck_irq, + pmic8xxx_kp_stuck_irq, IRQF_TRIGGER_RISING, + "pmic-keypad-stuck", kp); if (rc < 0) { dev_err(&pdev->dev, "failed to request keypad stuck irq\n"); - goto err_req_stuck_irq; + return rc; } rc = pmic8xxx_kp_read_u8(kp, &ctrl_val, KEYP_CTRL); if (rc < 0) { dev_err(&pdev->dev, "failed to read KEYP_CTRL register\n"); - goto err_pmic_reg_read; + return rc; } kp->ctrl_reg = ctrl_val; @@ -692,36 +689,12 @@ static int pmic8xxx_kp_probe(struct platform_device *pdev) rc = input_register_device(kp->input); if (rc < 0) { dev_err(&pdev->dev, "unable to register keypad input device\n"); - goto err_pmic_reg_read; + return rc; } device_init_wakeup(&pdev->dev, pdata->wakeup); return 0; - -err_pmic_reg_read: - free_irq(kp->key_stuck_irq, kp); -err_req_stuck_irq: - free_irq(kp->key_sense_irq, kp); -err_gpio_config: -err_get_irq: - input_free_device(kp->input); -err_alloc_device: - kfree(kp); - return rc; -} - -static int pmic8xxx_kp_remove(struct platform_device *pdev) -{ - struct pmic8xxx_kp *kp = platform_get_drvdata(pdev); - - device_init_wakeup(&pdev->dev, 0); - free_irq(kp->key_stuck_irq, kp); - free_irq(kp->key_sense_irq, kp); - input_unregister_device(kp->input); - kfree(kp); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -771,7 +744,6 @@ static SIMPLE_DEV_PM_OPS(pm8xxx_kp_pm_ops, static struct platform_driver pmic8xxx_kp_driver = { .probe = pmic8xxx_kp_probe, - .remove = pmic8xxx_kp_remove, .driver = { .name = PM8XXX_KEYPAD_DEV_NAME, .owner = THIS_MODULE,