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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71FB0C433EF for ; Thu, 4 Nov 2021 19:31:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C05E61216 for ; Thu, 4 Nov 2021 19:31:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231750AbhKDTeb (ORCPT ); Thu, 4 Nov 2021 15:34:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230403AbhKDTea (ORCPT ); Thu, 4 Nov 2021 15:34:30 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1192CC061714; Thu, 4 Nov 2021 12:31:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=IgyRd2waBlNCrMjSSmERlQB54Ngi/imrPkns2njYLsc=; b=C9ECYipk7RiK3ASqcJXgqWTjH6 pm+LTphZHRcWlFn10zbPEkhmzlX+UtmZIM0HWFnR5tNNkTUnOLPdlbsZ2sm+/RSMpyGhiUZ2GXZZ5 Y46Q3JPPJWY8BLqvasbwD/sYaMfB4jQIBK2ojqTZtqTbhaoPd4ZVeV6wKTPcRTm4+/xKTSwN+nGB/ dxBc0b8PssUdMNpLOm2zXBjFgiLckID3PHYezciIcMR8oL2i+V4njTCINb0neN7RMfDzsAHuX5N9M jB7vsXcurrnZa2C2bavoBxEYiIHPtZ9wrQlcNKOLsF80LZU2l3H9b09XBtgARrPsIEVxGAl6fQCxP I54esy4A==; Received: from mcgrof by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1miiSj-009szW-QI; Thu, 04 Nov 2021 19:31:49 +0000 Date: Thu, 4 Nov 2021 12:31:49 -0700 From: Luis Chamberlain To: Jens Axboe Cc: hare@suse.de, hch@infradead.org, wubo40@huawei.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] block: fix bd_holder_dir kobject_create_and_add() error handling Message-ID: References: <20211104192959.2355827-1-mcgrof@kernel.org> <993a116a-72bf-9304-1577-3f2e4300daeb@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <993a116a-72bf-9304-1577-3f2e4300daeb@kernel.dk> Sender: Luis Chamberlain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 04, 2021 at 01:30:29PM -0600, Jens Axboe wrote: > On 11/4/21 1:29 PM, Luis Chamberlain wrote: > > Commit 83cbce957446 ("block: add error handling for device_add_disk / > > add_disk") added error handling to device_add_disk(), however the goto > > label for the bd_holder_dir kobject_create_and_add() failure did not set > > the return value correctly, and so we can end up in a situation where > > kobject_create_and_add() fails but we report success. > > I'm just going to fold this one in, as it's top-of-tree. Makes sense. Luis