From patchwork Mon Jun 3 18:05:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 10973709 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 E0BB814B6 for ; Mon, 3 Jun 2019 18:06:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D073F286E0 for ; Mon, 3 Jun 2019 18:06:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C3F1F286F3; Mon, 3 Jun 2019 18:06:05 +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=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 3E624286E0 for ; Mon, 3 Jun 2019 18:06:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726211AbfFCSGF (ORCPT ); Mon, 3 Jun 2019 14:06:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:51756 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726190AbfFCSGE (ORCPT ); Mon, 3 Jun 2019 14:06:04 -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 C372126D1F; Mon, 3 Jun 2019 18:06:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559585163; bh=DbxovbouKkrSmijo0WTy5O6+felIbT/I8BHz7jorD3s=; h=Subject:To:From:Date:From; b=bQKbQRjq4Sc1KaFvg/dleXdtQT3cvhP++Bx77kMBDUnBnZTr4/MADbrZqJ+NRhysO aCj8Bp1X0EXbP8FEIEwHvDfvhTuRl4QvZpZJQVDEPmtp62AlPm86dL0dTt19QDQ0yu BCpq2mcQfhXgaKFAHTe5kvGZ/XKQhVpV1hKrpKfI= Subject: patch "sh: no need to check return value of debugfs_create functions" added to driver-core-next To: gregkh@linuxfoundation.org, dalias@libc.org, linux-sh@vger.kernel.org, ysato@users.sourceforge.jp From: Date: Mon, 03 Jun 2019 20:05:50 +0200 Message-ID: <155958515020779@kroah.com> MIME-Version: 1.0 Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This is a note to let you know that I've just added the patch titled sh: no need to check return value of debugfs_create functions to my driver-core git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git in the driver-core-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. From 03eb2a08fccc49f93587666e4e1a14ce00df955a Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 22 Jan 2019 15:50:30 +0100 Subject: sh: no need to check return value of debugfs_create functions 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: Yoshinori Sato Cc: Rich Felker Cc: Signed-off-by: Greg Kroah-Hartman --- arch/sh/kernel/kdebugfs.c | 3 --- arch/sh/mm/asids-debugfs.c | 11 +++-------- arch/sh/mm/cache-debugfs.c | 20 ++++---------------- arch/sh/mm/pmb.c | 9 ++------- arch/sh/mm/tlb-debugfs.c | 20 ++++---------------- 5 files changed, 13 insertions(+), 50 deletions(-) diff --git a/arch/sh/kernel/kdebugfs.c b/arch/sh/kernel/kdebugfs.c index 95428e05d212..8b505e1556a5 100644 --- a/arch/sh/kernel/kdebugfs.c +++ b/arch/sh/kernel/kdebugfs.c @@ -9,9 +9,6 @@ EXPORT_SYMBOL(arch_debugfs_dir); static int __init arch_kdebugfs_init(void) { arch_debugfs_dir = debugfs_create_dir("sh", NULL); - if (!arch_debugfs_dir) - return -ENOMEM; - return 0; } arch_initcall(arch_kdebugfs_init); diff --git a/arch/sh/mm/asids-debugfs.c b/arch/sh/mm/asids-debugfs.c index e5539e0f8e3b..4c1ca197e9c5 100644 --- a/arch/sh/mm/asids-debugfs.c +++ b/arch/sh/mm/asids-debugfs.c @@ -63,13 +63,8 @@ static const struct file_operations asids_debugfs_fops = { static int __init asids_debugfs_init(void) { - struct dentry *asids_dentry; - - asids_dentry = debugfs_create_file("asids", S_IRUSR, arch_debugfs_dir, - NULL, &asids_debugfs_fops); - if (!asids_dentry) - return -ENOMEM; - - return PTR_ERR_OR_ZERO(asids_dentry); + debugfs_create_file("asids", S_IRUSR, arch_debugfs_dir, NULL, + &asids_debugfs_fops); + return 0; } device_initcall(asids_debugfs_init); diff --git a/arch/sh/mm/cache-debugfs.c b/arch/sh/mm/cache-debugfs.c index 4eb9d43578b4..17d780794497 100644 --- a/arch/sh/mm/cache-debugfs.c +++ b/arch/sh/mm/cache-debugfs.c @@ -109,22 +109,10 @@ static const struct file_operations cache_debugfs_fops = { static int __init cache_debugfs_init(void) { - struct dentry *dcache_dentry, *icache_dentry; - - dcache_dentry = debugfs_create_file("dcache", S_IRUSR, arch_debugfs_dir, - (unsigned int *)CACHE_TYPE_DCACHE, - &cache_debugfs_fops); - if (!dcache_dentry) - return -ENOMEM; - - icache_dentry = debugfs_create_file("icache", S_IRUSR, arch_debugfs_dir, - (unsigned int *)CACHE_TYPE_ICACHE, - &cache_debugfs_fops); - if (!icache_dentry) { - debugfs_remove(dcache_dentry); - return -ENOMEM; - } - + debugfs_create_file("dcache", S_IRUSR, arch_debugfs_dir, + (void *)CACHE_TYPE_DCACHE, &cache_debugfs_fops); + debugfs_create_file("icache", S_IRUSR, arch_debugfs_dir, + (void *)CACHE_TYPE_ICACHE, &cache_debugfs_fops); return 0; } module_init(cache_debugfs_init); diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c index a53a040d0054..b59bad86b31e 100644 --- a/arch/sh/mm/pmb.c +++ b/arch/sh/mm/pmb.c @@ -861,13 +861,8 @@ static const struct file_operations pmb_debugfs_fops = { static int __init pmb_debugfs_init(void) { - struct dentry *dentry; - - dentry = debugfs_create_file("pmb", S_IFREG | S_IRUGO, - arch_debugfs_dir, NULL, &pmb_debugfs_fops); - if (!dentry) - return -ENOMEM; - + debugfs_create_file("pmb", S_IFREG | S_IRUGO, arch_debugfs_dir, NULL, + &pmb_debugfs_fops); return 0; } subsys_initcall(pmb_debugfs_init); diff --git a/arch/sh/mm/tlb-debugfs.c b/arch/sh/mm/tlb-debugfs.c index dea637a09246..11c6148283f3 100644 --- a/arch/sh/mm/tlb-debugfs.c +++ b/arch/sh/mm/tlb-debugfs.c @@ -149,22 +149,10 @@ static const struct file_operations tlb_debugfs_fops = { static int __init tlb_debugfs_init(void) { - struct dentry *itlb, *utlb; - - itlb = debugfs_create_file("itlb", S_IRUSR, arch_debugfs_dir, - (unsigned int *)TLB_TYPE_ITLB, - &tlb_debugfs_fops); - if (unlikely(!itlb)) - return -ENOMEM; - - utlb = debugfs_create_file("utlb", S_IRUSR, arch_debugfs_dir, - (unsigned int *)TLB_TYPE_UTLB, - &tlb_debugfs_fops); - if (unlikely(!utlb)) { - debugfs_remove(itlb); - return -ENOMEM; - } - + debugfs_create_file("itlb", S_IRUSR, arch_debugfs_dir, + (void *)TLB_TYPE_ITLB, &tlb_debugfs_fops); + debugfs_create_file("utlb", S_IRUSR, arch_debugfs_dir, + (void *)TLB_TYPE_UTLB, &tlb_debugfs_fops); return 0; } module_init(tlb_debugfs_init);