From patchwork Wed Apr 25 15:48:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 904440 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-ide-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=infradead.org header.i=@infradead.org header.b="YZif4vFf"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40WPwL3kgLz9ryk for ; Thu, 26 Apr 2018 01:57:22 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755606AbeDYP5U (ORCPT ); Wed, 25 Apr 2018 11:57:20 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:39676 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755426AbeDYPvF (ORCPT ); Wed, 25 Apr 2018 11:51:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=RWGKGj9U1FaZ95dkodI1qde1IXf4jl54VYOy76x0G00=; b=YZif4vFf33IRBwyodTZxG1LTk ntk7Pc3TJHBD4i9Kj56n540fOoPeWjYfH3AdVOshPGuNqtElzCAR3z8z1b1x7r9OyUNic4zAecbIK 0DR0j0ton4EF9Wp3SYGR49L/55QLSo0OZPkzumvN/te7izBDwtDUOK8qAsC7YsribCviIel+sEkET E1xjj9HSwMZ9W74oosRXxWsTKG7m8fkuE2H4Aig8DVDFSWiIHOBzNaIM6tuUXulDH4w6P96rH+gnZ mDHimwxYXcw7Bl/JBI3ZUiZq4xm0PTtD1geWnZWWMAhCivA06iMj3kg8YjYWjbZoDDhhjdXn03JKE 21QZuVrqg==; Received: from 089144200182.atnat0009.highway.a1.net ([89.144.200.182] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fBMgc-0002wC-Aq; Wed, 25 Apr 2018 15:50:27 +0000 From: Christoph Hellwig To: Andrew Morton , Alexander Viro Cc: Alexey Dobriyan , Greg Kroah-Hartman , Jiri Slaby , Alessandro Zummo , Alexandre Belloni , linux-acpi@vger.kernel.org, drbd-dev@lists.linbit.com, linux-ide@vger.kernel.org, netdev@vger.kernel.org, linux-rtc@vger.kernel.org, megaraidlinux.pdl@broadcom.com, linux-scsi@vger.kernel.org, devel@driverdev.osuosl.org, linux-afs@lists.infradead.org, linux-ext4@vger.kernel.org, jfs-discussion@lists.sourceforge.net, netfilter-devel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 27/40] rtc/proc: switch to proc_create_single_data Date: Wed, 25 Apr 2018 17:48:14 +0200 Message-Id: <20180425154827.32251-28-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180425154827.32251-1-hch@lst.de> References: <20180425154827.32251-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-ide-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org And stop trying to get a reference on the submodule, procfs code deals with release after and unloaded module and thus removed proc entry. Signed-off-by: Christoph Hellwig Acked-by: Alexandre Belloni --- drivers/rtc/rtc-proc.c | 33 ++------------------------------- 1 file changed, 2 insertions(+), 31 deletions(-) diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c index 31e7e23cc5be..a9dd9218fae2 100644 --- a/drivers/rtc/rtc-proc.c +++ b/drivers/rtc/rtc-proc.c @@ -107,40 +107,11 @@ static int rtc_proc_show(struct seq_file *seq, void *offset) return 0; } -static int rtc_proc_open(struct inode *inode, struct file *file) -{ - int ret; - struct rtc_device *rtc = PDE_DATA(inode); - - if (!try_module_get(rtc->owner)) - return -ENODEV; - - ret = single_open(file, rtc_proc_show, rtc); - if (ret) - module_put(rtc->owner); - return ret; -} - -static int rtc_proc_release(struct inode *inode, struct file *file) -{ - int res = single_release(inode, file); - struct rtc_device *rtc = PDE_DATA(inode); - - module_put(rtc->owner); - return res; -} - -static const struct file_operations rtc_proc_fops = { - .open = rtc_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = rtc_proc_release, -}; - void rtc_proc_add_device(struct rtc_device *rtc) { if (is_rtc_hctosys(rtc)) - proc_create_data("driver/rtc", 0, NULL, &rtc_proc_fops, rtc); + proc_create_single_data("driver/rtc", 0, NULL, rtc_proc_show, + rtc); } void rtc_proc_del_device(struct rtc_device *rtc)