From patchwork Tue Jan 22 14:57:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 10775639 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 0F51E13BF for ; Tue, 22 Jan 2019 14:58:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F369D291F5 for ; Tue, 22 Jan 2019 14:58:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E749A29350; Tue, 22 Jan 2019 14:58:44 +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 7E5632932F for ; Tue, 22 Jan 2019 14:58:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728947AbfAVO6o (ORCPT ); Tue, 22 Jan 2019 09:58:44 -0500 Received: from mail.kernel.org ([198.145.29.99]:37978 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729042AbfAVO6e (ORCPT ); Tue, 22 Jan 2019 09:58:34 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.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 1382521726; Tue, 22 Jan 2019 14:58:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548169113; bh=jCuAxteeCLcwZWRObsCeZCZ4eTBs5kj/RbwALPOVfCY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dBEe1EfedWy8GgMm+wVyTpMFe1BLc7oXgag0iN0zzbBf+u9h7l6F28EaeMRtgHYBL mlYVLIYjMLQ/X/0N/vfNbHOjpDAXMHQp4yCftMSvDZ9BsXj6jOfMgQ9g6tGPK4T1f+ Z2s9RJB6K32Uph8TNdpXYKuy4uN8d7wqt54VFaYs= From: Greg Kroah-Hartman To: Ralf Baechle , Paul Burton , James Hogan , John Crispin Cc: linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, Greg Kroah-Hartman , Yangtao Li Subject: [PATCH 4/5] mips: math-emu: no need to check return value of debugfs_create functions Date: Tue, 22 Jan 2019 15:57:41 +0100 Message-Id: <20190122145742.11292-5-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190122145742.11292-1-gregkh@linuxfoundation.org> References: <20190122145742.11292-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@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: Ralf Baechle Cc: Paul Burton Cc: James Hogan Cc: Yangtao Li Cc: linux-mips@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- arch/mips/math-emu/me-debugfs.c | 23 ++++------------------- 1 file changed, 4 insertions(+), 19 deletions(-) diff --git a/arch/mips/math-emu/me-debugfs.c b/arch/mips/math-emu/me-debugfs.c index 58798f527356..387724860fa6 100644 --- a/arch/mips/math-emu/me-debugfs.c +++ b/arch/mips/math-emu/me-debugfs.c @@ -189,32 +189,21 @@ static int __init debugfs_fpuemu(void) { struct dentry *fpuemu_debugfs_base_dir; struct dentry *fpuemu_debugfs_inst_dir; - struct dentry *d, *reset_file; - - if (!mips_debugfs_dir) - return -ENODEV; fpuemu_debugfs_base_dir = debugfs_create_dir("fpuemustats", mips_debugfs_dir); - if (!fpuemu_debugfs_base_dir) - return -ENOMEM; - reset_file = debugfs_create_file("fpuemustats_clear", 0444, - mips_debugfs_dir, NULL, - &fpuemustats_clear_fops); - if (!reset_file) - return -ENOMEM; + debugfs_create_file("fpuemustats_clear", 0444, mips_debugfs_dir, NULL, + &fpuemustats_clear_fops); #define FPU_EMU_STAT_OFFSET(m) \ offsetof(struct mips_fpu_emulator_stats, m) #define FPU_STAT_CREATE(m) \ do { \ - d = debugfs_create_file(#m, 0444, fpuemu_debugfs_base_dir, \ + debugfs_create_file(#m, 0444, fpuemu_debugfs_base_dir, \ (void *)FPU_EMU_STAT_OFFSET(m), \ &fops_fpuemu_stat); \ - if (!d) \ - return -ENOMEM; \ } while (0) FPU_STAT_CREATE(emulated); @@ -233,8 +222,6 @@ do { \ fpuemu_debugfs_inst_dir = debugfs_create_dir("instructions", fpuemu_debugfs_base_dir); - if (!fpuemu_debugfs_inst_dir) - return -ENOMEM; #define FPU_STAT_CREATE_EX(m) \ do { \ @@ -242,11 +229,9 @@ do { \ \ adjust_instruction_counter_name(name, #m); \ \ - d = debugfs_create_file(name, 0444, fpuemu_debugfs_inst_dir, \ + debugfs_create_file(name, 0444, fpuemu_debugfs_inst_dir, \ (void *)FPU_EMU_STAT_OFFSET(m), \ &fops_fpuemu_stat); \ - if (!d) \ - return -ENOMEM; \ } while (0) FPU_STAT_CREATE_EX(abs_s);