From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FAFBC43381 for ; Thu, 28 Feb 2019 01:33:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 46CD92186A for ; Thu, 28 Feb 2019 01:33:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730747AbfB1BdP (ORCPT ); Wed, 27 Feb 2019 20:33:15 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:55430 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730234AbfB1BdP (ORCPT ); Wed, 27 Feb 2019 20:33:15 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 4C76C6DD09C156CE82AD; Thu, 28 Feb 2019 09:33:13 +0800 (CST) Received: from localhost (10.177.31.96) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.408.0; Thu, 28 Feb 2019 09:33:06 +0800 From: Yue Haibing To: , , CC: , , YueHaibing Subject: [PATCH v2 -next] appletalk: use remove_proc_subtree to simplify procfs code Date: Thu, 28 Feb 2019 09:31:58 +0800 Message-ID: <20190228013158.7972-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.177.31.96] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: YueHaibing Use remove_proc_subtree to remove the whole subtree on cleanup.Also do some cleanup. Signed-off-by: YueHaibing --- net/appletalk/atalk_proc.c | 56 ++++++++++++++-------------------------------- 1 file changed, 17 insertions(+), 39 deletions(-) diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c index 8006295..398b767 100644 --- a/net/appletalk/atalk_proc.c +++ b/net/appletalk/atalk_proc.c @@ -210,56 +210,34 @@ static const struct seq_operations atalk_seq_socket_ops = { .show = atalk_seq_socket_show, }; -static struct proc_dir_entry *atalk_proc_dir; - int __init atalk_proc_init(void) { - struct proc_dir_entry *p; - int rc = -ENOMEM; + if (!proc_mkdir("atalk", init_net.proc_net)) + return -ENOMEM; - atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net); - if (!atalk_proc_dir) + if (!proc_create_seq("atalk/interface", 0444, init_net.proc_net, + &atalk_seq_interface_ops)) goto out; - p = proc_create_seq("interface", 0444, atalk_proc_dir, - &atalk_seq_interface_ops); - if (!p) - goto out_interface; - - p = proc_create_seq("route", 0444, atalk_proc_dir, - &atalk_seq_route_ops); - if (!p) - goto out_route; + if (!proc_create_seq("atalk/route", 0444, init_net.proc_net, + &atalk_seq_route_ops)) + goto out; - p = proc_create_seq("socket", 0444, atalk_proc_dir, - &atalk_seq_socket_ops); - if (!p) - goto out_socket; + if (!proc_create_seq("atalk/socket", 0444, init_net.proc_net, + &atalk_seq_socket_ops)) + goto out; - p = proc_create_seq_private("arp", 0444, atalk_proc_dir, &aarp_seq_ops, - sizeof(struct aarp_iter_state), NULL); - if (!p) - goto out_arp; + if (!proc_create_seq_private("atalk/arp", 0444, init_net.proc_net, + &aarp_seq_ops, + sizeof(struct aarp_iter_state), NULL)) + goto out; - rc = 0; out: - return rc; -out_arp: - remove_proc_entry("socket", atalk_proc_dir); -out_socket: - remove_proc_entry("route", atalk_proc_dir); -out_route: - remove_proc_entry("interface", atalk_proc_dir); -out_interface: - remove_proc_entry("atalk", init_net.proc_net); - goto out; + remove_proc_subtree("atalk", init_net.proc_net); + return -ENOMEM; } void __exit atalk_proc_exit(void) { - remove_proc_entry("interface", atalk_proc_dir); - remove_proc_entry("route", atalk_proc_dir); - remove_proc_entry("socket", atalk_proc_dir); - remove_proc_entry("arp", atalk_proc_dir); - remove_proc_entry("atalk", init_net.proc_net); + remove_proc_subtree("atalk", init_net.proc_net); } -- 2.7.0