From nobody Tue Nov 26 09:32:38 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=@intel.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linux.intel.com ARC-Seal: i=1; a=rsa-sha256; t=1709137531; cv=none; d=zohomail.com; s=zohoarc; b=gRWM5Ox5YPJxd4v5+KpaSVq4QxCy3jszuDPXoDXIDScGDUklqiP8ufA3xrNPC3wtK8eeCsdiPnenKUDJZHub7rlqtrXn8qrb6StCv+UebN/05+zw8l31xVc+HlVWoGHAnd4G57Tj/F7ttez+SUOGhlGYqePAwpaatGHYZw+1rsU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1709137531; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=Ot9R/ybWhucs1vYoxlYCamAhJZHz2Saz5K2xfPemjHQ=; b=aGnvLjHw/ipo3M8wJCIj/fF0Z5mj/x/gXB8p6L0PRabLXhWzfScBdOXPRfx/tvr/rQejEWpr4AWc37W5FEtXtrWom2siU3IOfa8CyOWDFgWzSdN3hruHWs5g2+Wqv8c/psWO76DNdxLgTKXrVYLbWkdDeFh2+h+F2F6KH8eJWfM= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=@intel.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1709137531233211.0453883147136; Wed, 28 Feb 2024 08:25:31 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rfMjN-0004Q4-5F; Wed, 28 Feb 2024 11:24:29 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rfMjL-0004OJ-KW; Wed, 28 Feb 2024 11:24:27 -0500 Received: from mgamail.intel.com ([192.198.163.7]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rfMjK-0000sx-1T; Wed, 28 Feb 2024 11:24:27 -0500 Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2024 08:24:21 -0800 Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.36]) by orviesa004.jf.intel.com with ESMTP; 28 Feb 2024 08:24:17 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709137466; x=1740673466; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=se7iaBg2YM4bDU1t5iF+ZzwdJjnzwm4fgLQ2Wyzhwuw=; b=fLlY9V60XoY97Z0P/0LFl5zrFdms/IFU7sIsHh9Dztd/59Xgp99N4sfZ rU6xtecXRoH5AyUm9TR31lgel3ySDuiMp5qjYobr/2sgnaXydIuAYaZGQ 3CnQ2EPnRRxH1/P4ro+YMWpdGDpqg3MmvsfKKMGycNm2WdiM7+DIyaG6z JgAblhc59fImAIZ2I4pKvSP3LrwqqGbYDietLhEUiablyFuT2usikrSTz Qfi/VPylQJB9UvmLDPF8sOlXzT0j4EZ3hndj7nnIpex8XdS6ExjuXF2fn CWT0M4UiU3aC1QMVE0QxpI3iKFmy+r21te8kmhvkSDZAoKtTQURQXL6/F g==; X-IronPort-AV: E=McAfee;i="6600,9927,10998"; a="28982562" X-IronPort-AV: E=Sophos;i="6.06,190,1705392000"; d="scan'208";a="28982562" X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,190,1705392000"; d="scan'208";a="12145008" From: Zhao Liu To: Markus Armbruster , Michael Roth , Michael Tokarev , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org Cc: qemu-trivial@nongnu.org, Zhao Liu , Stefan Weil , Kevin Wolf , Hanna Reitz Subject: [PATCH 11/16] block/vdi: Fix missing ERRP_GUARD() for error_prepend() Date: Thu, 29 Feb 2024 00:37:18 +0800 Message-Id: <20240228163723.1775791-12-zhao1.liu@linux.intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240228163723.1775791-1-zhao1.liu@linux.intel.com> References: <20240228163723.1775791-1-zhao1.liu@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=192.198.163.7; envelope-from=zhao1.liu@linux.intel.com; helo=mgamail.intel.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.102, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1709137532706100001 Content-Type: text/plain; charset="utf-8" From: Zhao Liu As the comment in qapi/error, passing @errp to error_prepend() requires ERRP_GUARD(): * =3D Why, when and how to use ERRP_GUARD() =3D * * Without ERRP_GUARD(), use of the @errp parameter is restricted: ... * - It should not be passed to error_prepend(), error_vprepend() or * error_append_hint(), because that doesn't work with &error_fatal. * ERRP_GUARD() lifts these restrictions. * * To use ERRP_GUARD(), add it right at the beginning of the function. * @errp can then be used without worrying about the argument being * NULL or &error_fatal. ERRP_GUARD() could avoid the case when @errp is the pointer of error_fatal, the user can't see this additional information, because exit() happens in error_setg earlier than information is added [1]. The vdi_co_do_create() passes @errp to error_prepend() without ERRP_GUARD(), and its @errp parameter is so widely sourced that it is necessary to protect it with ERRP_GUARD(). To avoid the potential issues as [1] said, add missing ERRP_GUARD() at the beginning of this function. [1]: Issue description in the commit message of commit ae7c80a7bd73 ("error: New macro ERRP_GUARD()"). Cc: Stefan Weil Cc: Kevin Wolf Cc: Hanna Reitz Signed-off-by: Zhao Liu --- block/vdi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/vdi.c b/block/vdi.c index 3b57becb9fe0..6363da08cee9 100644 --- a/block/vdi.c +++ b/block/vdi.c @@ -738,6 +738,7 @@ static int coroutine_fn GRAPH_UNLOCKED vdi_co_do_create(BlockdevCreateOptions *create_options, size_t block_size, Error **errp) { + ERRP_GUARD(); BlockdevCreateOptionsVdi *vdi_opts; int ret =3D 0; uint64_t bytes =3D 0; --=20 2.34.1