From nobody Tue Apr 15 09:55:06 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1592838785; cv=none; d=zohomail.com; s=zohoarc; b=MY0BbJYcOEeAV0EwfAQwBh2caqvY9EkH0Tc/XehUt1HiRk9ur/W+aYPgAjocpdrqr4tzxYEFEDzN0InYW/huo2jyCL1Ol+wY+nEkCeMenk8+f9iw+CWLTVLmVOFycnl3kUizKLTQsDnrOuOwkH1Z9PCrvAlhktb3HPh3ZA605l8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1592838785; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=kWlk0RfHP85NHjTYR1qqmW5V+NFFmlDtq7OQu6ex83E=; b=YLxNOlh2piJzInHj1kpQOLUoOmlioLIACI1MBLnhzHi/dW7FgjxWSlQBqKWhZdN+Shxdei/n7kHK+kh5WYNxQ92+ov+XEUxqgqlF/96zEq/rsGXLTFRCekwZ43J548r8o8dVqupDehB/+yvABOqN785uSrqhRg3bv2niY/BSji8= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; 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=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1592838785234189.3712584911292; Mon, 22 Jun 2020 08:13:05 -0700 (PDT) Received: from localhost ([::1]:52894 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jnO87-0002FA-Sz for importer@patchew.org; Mon, 22 Jun 2020 11:13:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50604) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jnO6U-00080L-40 for qemu-devel@nongnu.org; Mon, 22 Jun 2020 11:11:22 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:60791 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jnO6S-0005xp-77 for qemu-devel@nongnu.org; Mon, 22 Jun 2020 11:11:21 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-177-O2Zyv0SUNh6AZB5qCHPBgw-1; Mon, 22 Jun 2020 11:11:09 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F0D9D1083E82; Mon, 22 Jun 2020 15:11:07 +0000 (UTC) Received: from localhost (ovpn-114-85.ams2.redhat.com [10.36.114.85]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 931EC10013D7; Mon, 22 Jun 2020 15:11:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1592838679; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kWlk0RfHP85NHjTYR1qqmW5V+NFFmlDtq7OQu6ex83E=; b=cEq9lIGC2zncC8Zcwp1f/LZnHwB3HgApMCam8rtvU9pBal2RAsPX45gZ2vhzmyBqnB7dzA qVLEd7U/WsJwjXkPcNjZFPHfQybnuNlucNeiVTkVQJ9dbOfnkZhQ0rBb6tHGJtqYcCSIHk 19bB9SGAwXpVmNQm5ij4xEQRg/V/ln0= X-MC-Unique: O2Zyv0SUNh6AZB5qCHPBgw-1 From: Max Reitz To: qemu-block@nongnu.org Subject: [PULL 03/18] block/block-copy: block_copy_dirty_clusters: fix failure check Date: Mon, 22 Jun 2020 17:10:44 +0200 Message-Id: <20200622151059.921191-4-mreitz@redhat.com> In-Reply-To: <20200622151059.921191-1-mreitz@redhat.com> References: <20200622151059.921191-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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: pass client-ip=207.211.31.81; envelope-from=mreitz@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/22 02:57:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Peter Maydell , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Vladimir Sementsov-Ogievskiy ret may be > 0 on success path at this point. Fix assertion, which may crash currently. Fixes: 4ce5dd3e9b5ee0fac18625860eb3727399ee965e Signed-off-by: Vladimir Sementsov-Ogievskiy Message-Id: <20200526181347.489557-1-vsementsov@virtuozzo.com> Signed-off-by: Max Reitz --- block/block-copy.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/block/block-copy.c b/block/block-copy.c index bb8d0569f2..f7428a7c08 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -622,8 +622,10 @@ out: * block_copy_task_run. If it fails, it means some task already fa= iled * for real reason, let's return first failure. * Still, assert that we don't rewrite failure by success. + * + * Note: ret may be positive here because of block-status result. */ - assert(ret =3D=3D 0 || aio_task_pool_status(aio) < 0); + assert(ret >=3D 0 || aio_task_pool_status(aio) < 0); ret =3D aio_task_pool_status(aio); =20 aio_task_pool_free(aio); --=20 2.26.2