From patchwork Tue Jan 22 15:21:30 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: 10775777 X-Patchwork-Delegate: kvalo@adurom.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 E0D3B1390 for ; Tue, 22 Jan 2019 15:26:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D0BF82AEAD for ; Tue, 22 Jan 2019 15:26:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C4DD92AEC9; Tue, 22 Jan 2019 15:26:56 +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=-6.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,URIBL_BLACK 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 6138E2AEAD for ; Tue, 22 Jan 2019 15:26:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729778AbfAVPXL (ORCPT ); Tue, 22 Jan 2019 10:23:11 -0500 Received: from mail.kernel.org ([198.145.29.99]:35794 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729133AbfAVPXI (ORCPT ); Tue, 22 Jan 2019 10:23:08 -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 C0F7620879; Tue, 22 Jan 2019 15:23:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548170587; bh=O8fEptWbd+sDeGXD7getcYXloKIXLOkpZ/IfE9uqfJU=; h=From:To:Cc:Subject:Date:From; b=N2GGIh9WyUnciGhcOjCEA6N4rBmddD2kothcXy5SjIMbKiNrbNdPTdknCQA4HIIVf fPaAmx3fT10xA8VqvdQ0i3C5ZdQZVGcDCnjvU4cVNWybWd3KLhhNRBaex3maVnZoU6 Irj36XiwESdMsIzqyis1QI9DU+4wcPbU30RIGK5k= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , Larry Finger , Kalle Valo , linux-wireless@vger.kernel.org, b43-dev@lists.infradead.org Subject: [PATCH] b43legacy: no need to check return value of debugfs_create functions Date: Tue, 22 Jan 2019 16:21:30 +0100 Message-Id: <20190122152151.16139-31-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@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: Larry Finger Cc: Kalle Valo Cc: linux-wireless@vger.kernel.org Cc: b43-dev@lists.infradead.org Signed-off-by: Greg Kroah-Hartman Acked-by: Larry Finger --- .../net/wireless/broadcom/b43legacy/debugfs.c | 35 +++++-------------- 1 file changed, 8 insertions(+), 27 deletions(-) diff --git a/drivers/net/wireless/broadcom/b43legacy/debugfs.c b/drivers/net/wireless/broadcom/b43legacy/debugfs.c index 82ef56ed7ca1..8150adee3e34 100644 --- a/drivers/net/wireless/broadcom/b43legacy/debugfs.c +++ b/drivers/net/wireless/broadcom/b43legacy/debugfs.c @@ -361,15 +361,13 @@ static void b43legacy_remove_dynamic_debug(struct b43legacy_wldev *dev) static void b43legacy_add_dynamic_debug(struct b43legacy_wldev *dev) { struct b43legacy_dfsentry *e = dev->dfsentry; - struct dentry *d; -#define add_dyn_dbg(name, id, initstate) do { \ - e->dyn_debug[id] = (initstate); \ - d = debugfs_create_bool(name, 0600, e->subdir, \ - &(e->dyn_debug[id])); \ - if (!IS_ERR(d)) \ - e->dyn_debug_dentries[id] = d; \ - } while (0) +#define add_dyn_dbg(name, id, initstate) do { \ + e->dyn_debug[id] = (initstate); \ + e->dyn_debug_dentries[id] = \ + debugfs_create_bool(name, 0600, e->subdir, \ + &(e->dyn_debug[id])); \ + } while (0) add_dyn_dbg("debug_xmitpower", B43legacy_DBG_XMITPOWER, false); add_dyn_dbg("debug_dmaoverflow", B43legacy_DBG_DMAOVERFLOW, false); @@ -408,29 +406,14 @@ void b43legacy_debugfs_add_device(struct b43legacy_wldev *dev) snprintf(devdir, sizeof(devdir), "%s", wiphy_name(dev->wl->hw->wiphy)); e->subdir = debugfs_create_dir(devdir, rootdir); - if (!e->subdir || IS_ERR(e->subdir)) { - if (e->subdir == ERR_PTR(-ENODEV)) { - b43legacydbg(dev->wl, "DebugFS (CONFIG_DEBUG_FS) not " - "enabled in kernel config\n"); - } else { - b43legacyerr(dev->wl, "debugfs: cannot create %s directory\n", - devdir); - } - dev->dfsentry = NULL; - kfree(log->log); - kfree(e); - return; - } #define ADD_FILE(name, mode) \ do { \ - struct dentry *d; \ - d = debugfs_create_file(__stringify(name), \ + e->file_##name.dentry = \ + debugfs_create_file(__stringify(name), \ mode, e->subdir, dev, \ &fops_##name.fops); \ e->file_##name.dentry = NULL; \ - if (!IS_ERR(d)) \ - e->file_##name.dentry = d; \ } while (0) @@ -492,8 +475,6 @@ void b43legacy_debugfs_log_txstat(struct b43legacy_wldev *dev, void b43legacy_debugfs_init(void) { rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL); - if (IS_ERR(rootdir)) - rootdir = NULL; } void b43legacy_debugfs_exit(void)