From patchwork Fri May 8 15:36:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 219608 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 79F34C54E4A for ; Fri, 8 May 2020 15:37:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 58BE724956 for ; Fri, 8 May 2020 15:37:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="QaziO0NS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728444AbgEHPhM (ORCPT ); Fri, 8 May 2020 11:37:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728355AbgEHPhI (ORCPT ); Fri, 8 May 2020 11:37:08 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 570CBC061A0C; Fri, 8 May 2020 08:37:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=NUGZNNRYFM0r6kvrHWtMu9/AVBHfp8IFXSz0BKnUiVc=; b=QaziO0NSeQwoBUsoW2UkQtna/5 NGR+c8JIXGOc/mERbPJ/qE6LMl1yRyZBdONWcRQxh2qN+Rk/qihtN73flB3sHOwJF72lSyQj02odD tRz1FUuNgGFRL/cQ8TnpfPM5h5Cp1GcTIBamE9zY4bwV4OvEgkOaL+zUguxEmbvpSuUMR1MxJzv8+ vEWhImZDiwF5ZZ6jdFCkj2PmwdYN4Nsf7H6j0MBRkCAKtQhrPY8M7ps9NjGjWNJmItph2EXtAXF+u 6pUJHGpwiV3rE/TKreks53fL62TXAD3rNPY8PafEfyIqPvSP+y90xG3LSslfGPcOAJa2l3FCXL0ip KwSFPwBQ==; Received: from [2001:4bb8:180:9d3f:90d7:9df8:7cd:3504] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jX53j-0004SG-Pl; Fri, 08 May 2020 15:37:08 +0000 From: Christoph Hellwig To: Alexander Viro Cc: linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, kvm@vger.kernel.org, linux-fsdevel@vger.kernel.org, io-uring@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org Subject: [PATCH 11/12] gpiolib: use __anon_inode_getfd Date: Fri, 8 May 2020 17:36:33 +0200 Message-Id: <20200508153634.249933-12-hch@lst.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200508153634.249933-1-hch@lst.de> References: <20200508153634.249933-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Use __anon_inode_getfd instead of opencoding the logic using get_unused_fd_flags + anon_inode_getfile. Signed-off-by: Christoph Hellwig --- drivers/gpio/gpiolib.c | 28 ++++------------------------ 1 file changed, 4 insertions(+), 24 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 40f2d7f69be26..cbcf47b1e6a40 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -736,21 +736,13 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip) i--; lh->numdescs = handlereq.lines; - fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC); + fd = __anon_inode_getfd("gpio-linehandle", &linehandle_fileops, lh, + O_RDONLY | O_CLOEXEC, &file); if (fd < 0) { ret = fd; goto out_free_descs; } - file = anon_inode_getfile("gpio-linehandle", - &linehandle_fileops, - lh, - O_RDONLY | O_CLOEXEC); - if (IS_ERR(file)) { - ret = PTR_ERR(file); - goto out_put_unused_fd; - } - handlereq.fd = fd; if (copy_to_user(ip, &handlereq, sizeof(handlereq))) { /* @@ -769,8 +761,6 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip) return 0; -out_put_unused_fd: - put_unused_fd(fd); out_free_descs: for (i = 0; i < count; i++) gpiod_free(lh->descs[i]); @@ -1110,21 +1100,13 @@ static int lineevent_create(struct gpio_device *gdev, void __user *ip) if (ret) goto out_free_desc; - fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC); + fd = __anon_inode_getfd("gpio-event", &lineevent_fileops, le, + O_RDONLY | O_CLOEXEC, &file); if (fd < 0) { ret = fd; goto out_free_irq; } - file = anon_inode_getfile("gpio-event", - &lineevent_fileops, - le, - O_RDONLY | O_CLOEXEC); - if (IS_ERR(file)) { - ret = PTR_ERR(file); - goto out_put_unused_fd; - } - eventreq.fd = fd; if (copy_to_user(ip, &eventreq, sizeof(eventreq))) { /* @@ -1140,8 +1122,6 @@ static int lineevent_create(struct gpio_device *gdev, void __user *ip) return 0; -out_put_unused_fd: - put_unused_fd(fd); out_free_irq: free_irq(le->irq, le); out_free_desc: