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Sat, 30 Nov 2019 19:42:50 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 40B921135A63; Sat, 30 Nov 2019 20:42:41 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1575142976; 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=IzScTi0f13u/09c3vl32cClyMnYp+cJJAy0b4UZrYmo=; b=h0E4Fm6tu0IHKU6MCkLg73OojrGv0DGeVy/WCgb5OQt+TCrSTucjcW2cq/dbhT5POK3cuY DNF0cC92ZSpUB22nCW8UHHpN0EImP1PS3h9jbhXX1iqkj6YxULWXbLSX9lBh4Y2EebQMM7 oP/pNQRiDVYzX8m9oY0BDNwNApSmEAA= From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH 18/21] s390x: Fix latent query-cpu-definitions error handling bug Date: Sat, 30 Nov 2019 20:42:37 +0100 Message-Id: <20191130194240.10517-19-armbru@redhat.com> In-Reply-To: <20191130194240.10517-1-armbru@redhat.com> References: <20191130194240.10517-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: FHyFTlptOQKGHPVuX3yJ6w-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 , vsementsov@virtuozzo.com, David Hildenbrand 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" qmp_query_cpu_definitions() tries to ignore get_max_cpu_model()'s errors. However, it crashes when its @errp argument is null or &error_abort, and exit(1)s when it's &error_fatal. Messed up in commit 38cba1f4d8 "s390x: return unavailable features via query-cpu-definitions". The bug can't bite as no caller actually passes such @errp values. Fix it anyway. Cc: David Hildenbrand Cc: Cornelia Huck Signed-off-by: Markus Armbruster Reviewed-by: David Hildenbrand --- target/s390x/cpu_models.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index 3ed301b5e5..547bab8ac3 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -462,11 +462,7 @@ CpuDefinitionInfoList *qmp_query_cpu_definitions(Error= **errp) .list =3D NULL, }; =20 - list_data.model =3D get_max_cpu_model(errp); - if (*errp) { - error_free(*errp); - *errp =3D NULL; - } + list_data.model =3D get_max_cpu_model(NULL); =20 object_class_foreach(create_cpu_model_list, TYPE_S390_CPU, false, &list_data); --=20 2.21.0