From patchwork Wed Jun 13 17:28:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 928994 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 415Ydn3yBFz9s01 for ; Thu, 14 Jun 2018 03:29:17 +1000 (AEST) Received: from localhost ([::1]:35859 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fT9a7-0003MK-3g for incoming@patchwork.ozlabs.org; Wed, 13 Jun 2018 13:29:15 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47547) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fT9ZP-0003Jq-Bg for qemu-devel@nongnu.org; Wed, 13 Jun 2018 13:28:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fT9ZO-0006Y7-F4 for qemu-devel@nongnu.org; Wed, 13 Jun 2018 13:28:31 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:57404 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fT9ZO-0006WP-AP for qemu-devel@nongnu.org; Wed, 13 Jun 2018 13:28:30 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id F1D394022414 for ; Wed, 13 Jun 2018 17:28:29 +0000 (UTC) Received: from localhost (ovpn-112-63.ams2.redhat.com [10.36.112.63]) by smtp.corp.redhat.com (Postfix) with ESMTP id A774C1C661; Wed, 13 Jun 2018 17:28:29 +0000 (UTC) From: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= To: qemu-devel@nongnu.org Date: Wed, 13 Jun 2018 19:28:15 +0200 Message-Id: <20180613172815.32738-4-marcandre.lureau@redhat.com> In-Reply-To: <20180613172815.32738-1-marcandre.lureau@redhat.com> References: <20180613172815.32738-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Wed, 13 Jun 2018 17:28:30 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Wed, 13 Jun 2018 17:28:30 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'marcandre.lureau@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH 3/3] Revert "bus: do not unref the added child bus on realize" X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pbonzini@redhat.com, Gerd Hoffmann , =?utf-8?q?Marc?= =?utf-8?q?-Andr=C3=A9_Lureau?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This is wrong. object_finalize_child_property()'s unref balances the ref in object_property_add_child(). qbus_realize's unref balances the ref that was initially placed by object_new/object_initialize. This reverts commit f3d58385a6d3d82f65db602c5506e2d3d8c82394. Reported-by: Paolo Bonzini Signed-off-by: Marc-André Lureau --- hw/core/bus.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/core/bus.c b/hw/core/bus.c index ad0c9df335..4651f24486 100644 --- a/hw/core/bus.c +++ b/hw/core/bus.c @@ -102,6 +102,7 @@ static void qbus_realize(BusState *bus, DeviceState *parent, const char *name) QLIST_INSERT_HEAD(&bus->parent->child_bus, bus, sibling); bus->parent->num_child_bus++; object_property_add_child(OBJECT(bus->parent), bus->name, OBJECT(bus), NULL); + object_unref(OBJECT(bus)); } else if (bus != sysbus_get_default()) { /* TODO: once all bus devices are qdevified, only reset handler for main_system_bus should be registered here. */