From patchwork Wed Jun 12 12:12:52 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 10989749 X-Patchwork-Delegate: andy.shevchenko@gmail.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 15CCA1708 for ; Wed, 12 Jun 2019 12:13:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 03A4F28A1B for ; Wed, 12 Jun 2019 12:13:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E955D28A19; Wed, 12 Jun 2019 12:13:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8091F28A19 for ; Wed, 12 Jun 2019 12:13:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731321AbfFLMNT (ORCPT ); Wed, 12 Jun 2019 08:13:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:53402 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726864AbfFLMNP (ORCPT ); Wed, 12 Jun 2019 08:13:15 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 63C27208C4; Wed, 12 Jun 2019 12:13:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560341593; bh=HEfVF3kXxJ0nC/WZgJnYTwFfoLD22fZO73D9qujcDW0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Uly5nhvqu+cerVeYBgywQQJ0UwSMl6Ifr/guGTXQVODWkOj6CgbNDKDo8ju5vus7/ a7sg0+ot4IZ0H3oWXRpJwjqP1PitvtQvuKJ/2u76Kh3XQ0EktwCYlzeHB7bb3toIY1 CKAP7QnDPgYo/Fk1aMRXvshU4DIkKRv8Ov3iRTFo= From: Greg Kroah-Hartman To: dvhart@infradead.org, andy@infradead.org Cc: Greg Kroah-Hartman , Corentin Chary , acpi4asus-user@lists.sourceforge.net, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/8] platform: x86: asus-wmi: no need to check return value of debugfs_create functions Date: Wed, 12 Jun 2019 14:12:52 +0200 Message-Id: <20190612121258.19535-2-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190612121258.19535-1-gregkh@linuxfoundation.org> References: <20190612121258.19535-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 Sender: platform-driver-x86-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Corentin Chary Cc: Darren Hart Cc: Andy Shevchenko Cc: acpi4asus-user@lists.sourceforge.net Cc: platform-driver-x86@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/platform/x86/asus-wmi.c | 47 ++++++++------------------------- 1 file changed, 11 insertions(+), 36 deletions(-) diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 3e4336025e8f..4e3786eae349 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -2005,50 +2005,29 @@ static void asus_wmi_debugfs_exit(struct asus_wmi *asus) debugfs_remove_recursive(asus->debug.root); } -static int asus_wmi_debugfs_init(struct asus_wmi *asus) +static void asus_wmi_debugfs_init(struct asus_wmi *asus) { - struct dentry *dent; int i; asus->debug.root = debugfs_create_dir(asus->driver->name, NULL); - if (!asus->debug.root) { - pr_err("failed to create debugfs directory\n"); - goto error_debugfs; - } - dent = debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, - asus->debug.root, &asus->debug.method_id); - if (!dent) - goto error_debugfs; + debugfs_create_x32("method_id", S_IRUGO | S_IWUSR, asus->debug.root, + &asus->debug.method_id); - dent = debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, - asus->debug.root, &asus->debug.dev_id); - if (!dent) - goto error_debugfs; + debugfs_create_x32("dev_id", S_IRUGO | S_IWUSR, asus->debug.root, + &asus->debug.dev_id); - dent = debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, - asus->debug.root, &asus->debug.ctrl_param); - if (!dent) - goto error_debugfs; + debugfs_create_x32("ctrl_param", S_IRUGO | S_IWUSR, asus->debug.root, + &asus->debug.ctrl_param); for (i = 0; i < ARRAY_SIZE(asus_wmi_debug_files); i++) { struct asus_wmi_debugfs_node *node = &asus_wmi_debug_files[i]; node->asus = asus; - dent = debugfs_create_file(node->name, S_IFREG | S_IRUGO, - asus->debug.root, node, - &asus_wmi_debugfs_io_ops); - if (!dent) { - pr_err("failed to create debug file: %s\n", node->name); - goto error_debugfs; - } + debugfs_create_file(node->name, S_IFREG | S_IRUGO, + asus->debug.root, node, + &asus_wmi_debugfs_io_ops); } - - return 0; - -error_debugfs: - asus_wmi_debugfs_exit(asus); - return -ENOMEM; } static int asus_wmi_fan_init(struct asus_wmi *asus) @@ -2162,14 +2141,10 @@ static int asus_wmi_add(struct platform_device *pdev) goto fail_wmi_handler; } - err = asus_wmi_debugfs_init(asus); - if (err) - goto fail_debugfs; + asus_wmi_debugfs_init(asus); return 0; -fail_debugfs: - wmi_remove_notify_handler(asus->driver->event_guid); fail_wmi_handler: asus_wmi_backlight_exit(asus); fail_backlight: