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 X-Spam-Level: X-Spam-Status: No, score=-6.5 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 autolearn=ham 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 E3614C43603 for ; Wed, 4 Dec 2019 10:33:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AA21020661 for ; Wed, 4 Dec 2019 10:33:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="eksR6aFl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AA21020661 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:36580 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1icRyn-0003VI-Ob for qemu-devel@archiver.kernel.org; Wed, 04 Dec 2019 05:33:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39144) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1icR5l-0007IO-1k for qemu-devel@nongnu.org; Wed, 04 Dec 2019 04:37:07 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1icR5P-0000mM-8l for qemu-devel@nongnu.org; Wed, 04 Dec 2019 04:36:53 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:49190 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1icR5P-0000WT-3V for qemu-devel@nongnu.org; Wed, 04 Dec 2019 04:36:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1575452198; 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=1cWosWeT2TZOK6LwSZ56SM2lpIU6/+dPaDq6QV9nsFw=; b=eksR6aFloddx596T4v8SkYSEJCK7XZC1dMAgiNnmrjAtByPZ+RXu9RC8XQiMM0B48f5U4W o+hFFhjLKtJqDAtAh5Sy1Rj/vAcoHoppULR6+LUHLXsxWOObuCVNJpV8N63874kkJNlga7 qLLuPRMhDiI+hLE7pMDR0LmVIJdztg8= 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-62-KP3NdkBDO0Kp0ZNRA6CUHA-1; Wed, 04 Dec 2019 04:36:32 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A024BDC21 for ; Wed, 4 Dec 2019 09:36:31 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-134.ams2.redhat.com [10.36.116.134]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 80BCD19C69; Wed, 4 Dec 2019 09:36:28 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id A8BE411366F3; Wed, 4 Dec 2019 10:36:25 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH v2 12/18] s390x/cpumodel: Fix feature property error API violations Date: Wed, 4 Dec 2019 10:36:19 +0100 Message-Id: <20191204093625.14836-13-armbru@redhat.com> In-Reply-To: <20191204093625.14836-1-armbru@redhat.com> References: <20191204093625.14836-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: KP3NdkBDO0Kp0ZNRA6CUHA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 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: Cornelia Huck , David Hildenbrand Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" s390x-cpu property setters set_feature() and set_feature_group() dereference @errp when the visitor fails. That's wrong; see the big comment in error.h. Introduced in commit 0754f60429 "s390x/cpumodel: expose features and feature groups as properties". No caller actually passes null. Fix anyway: splice in a local Error *err, and error_propagate(). Cc: David Hildenbrand Cc: Cornelia Huck Signed-off-by: Markus Armbruster Reviewed-by: David Hildenbrand --- target/s390x/cpu_models.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index 7e92fb2e15..6a29fd3ab1 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -987,6 +987,7 @@ static void get_feature(Object *obj, Visitor *v, const = char *name, static void set_feature(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { + Error *err =3D NULL; S390Feat feat =3D (S390Feat) opaque; DeviceState *dev =3D DEVICE(obj); S390CPU *cpu =3D S390_CPU(obj); @@ -1002,8 +1003,9 @@ static void set_feature(Object *obj, Visitor *v, cons= t char *name, return; } =20 - visit_type_bool(v, name, &value, errp); - if (*errp) { + visit_type_bool(v, name, &value, &err); + if (err) { + error_propagate(errp, err); return; } if (value) { @@ -1043,6 +1045,7 @@ static void get_feature_group(Object *obj, Visitor *v= , const char *name, static void set_feature_group(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { + Error *err =3D NULL; S390FeatGroup group =3D (S390FeatGroup) opaque; const S390FeatGroupDef *def =3D s390_feat_group_def(group); DeviceState *dev =3D DEVICE(obj); @@ -1059,8 +1062,9 @@ static void set_feature_group(Object *obj, Visitor *v= , const char *name, return; } =20 - visit_type_bool(v, name, &value, errp); - if (*errp) { + visit_type_bool(v, name, &value, &err); + if (err) { + error_propagate(errp, err); return; } if (value) { --=20 2.21.0