From patchwork Wed May 16 09:43:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10403241 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 1FEAB602C2 for ; Wed, 16 May 2018 09:55:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0C84E2884B for ; Wed, 16 May 2018 09:55:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F391528854; Wed, 16 May 2018 09:55:40 +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=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID 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 741362884B for ; Wed, 16 May 2018 09:55:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752765AbeEPJzR (ORCPT ); Wed, 16 May 2018 05:55:17 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:48332 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751524AbeEPJqn (ORCPT ); Wed, 16 May 2018 05:46:43 -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=LX/mX+O9aXRiCBNKDDqlVGMosm5FxrbY7T6HDky9ne4=; b=a6ZnYFs/Hj3dpHuCysBYKCZVJ E/hnvL8A8xJ1Zb06LlTZCjAMD+ZmkAeyx9iKUauv26R8h3IBXefh7qV9pUexol9VDAva8ExhUr9z9 cV+q8OpKnXn7JBu2EuLLvH0U9hn/I/fZVo8TqAfJRkWLMJPR8ZifHRQcjbydY4EhebCeW5tZuXBe2 r+zOBhMqkh0M8jmKpnz1ZnvtDJFmefdIzSWNA1vppsSYPtA4bz8GICqSHycEqHv4Dc209zTb+PaQg JNUlYj7GOWN9gNlEmYbMMBNN311XuOlzLuphj5PK9xxUvV9q30O5cCZQ5CEhC2oGiWRcSkmzkAKfS ZZZA6camA==; Received: from 089144199016.atnat0008.highway.a1.net ([89.144.199.16] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fIt0O-0007s1-SJ; Wed, 16 May 2018 09:45:57 +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 29/42] rtc/proc: switch to proc_create_single_data Date: Wed, 16 May 2018 11:43:33 +0200 Message-Id: <20180516094346.20506-30-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180516094346.20506-1-hch@lst.de> References: <20180516094346.20506-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP And stop trying to get a reference on the submodule, procfs code deals with release after an 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)