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Fri, 13 Dec 2019 16:19:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1576253984; 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=uw8RzRlPrWToSzICCddlif8igLPYf+K8CwNrzt2Ukug=; b=bhlYHGbnDoEiQCcsMxDv+Znp57j05m7RNku3ufgZjjQf/QxTS/iDfrYpc+tZDYyDP9na3x AFaOT22oj21sh/IGb92f7pG9krx+X8L8PNMs9PDb5pCTdi57woi/MH3G/mZ2WWIt2zj2FQ enGRhGyjkqAy4Q2+5ElwkECyEdpPDSg= From: Cornelia Huck To: Peter Maydell Subject: [PULL 11/16] s390x/cpumodel: Fix feature property error API violations Date: Fri, 13 Dec 2019 17:18:46 +0100 Message-Id: <20191213161851.24687-12-cohuck@redhat.com> In-Reply-To: <20191213161851.24687-1-cohuck@redhat.com> References: <20191213161851.24687-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-MC-Unique: 2lovRvkRMeGBz613K5DIVA-1 X-Mimecast-Spam-Score: 0 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: 207.211.31.120 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 , qemu-s390x@nongnu.org, David Hildenbrand , qemu-devel@nongnu.org, Markus Armbruster 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: Markus Armbruster 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 Message-Id: <20191204093625.14836-13-armbru@redhat.com> Signed-off-by: Cornelia Huck --- 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 7e92fb2e156d..6a29fd3ab113 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