From patchwork Fri Aug 23 14:32:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= X-Patchwork-Id: 11111887 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3C0A8184E for ; Fri, 23 Aug 2019 14:40:35 +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 1D67A2054F for ; Fri, 23 Aug 2019 14:40:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1D67A2054F 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:57114 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i1Ajx-0007BS-Dp for patchwork-qemu-devel@patchwork.kernel.org; Fri, 23 Aug 2019 10:40:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50566) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i1Ada-0000iK-Oz for qemu-devel@nongnu.org; Fri, 23 Aug 2019 10:33:59 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i1AdZ-0002CN-Ji for qemu-devel@nongnu.org; Fri, 23 Aug 2019 10:33:58 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41026) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i1AdV-00023V-4b; Fri, 23 Aug 2019 10:33:54 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 699737F776; Fri, 23 Aug 2019 14:33:52 +0000 (UTC) Received: from x1w.redhat.com (ovpn-204-118.brq.redhat.com [10.40.204.118]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 6DD465D9CA; Fri, 23 Aug 2019 14:33:46 +0000 (UTC) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Date: Fri, 23 Aug 2019 16:32:49 +0200 Message-Id: <20190823143249.8096-7-philmd@redhat.com> In-Reply-To: <20190823143249.8096-1-philmd@redhat.com> References: <20190823143249.8096-1-philmd@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.71]); Fri, 23 Aug 2019 14:33:52 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 6/6] hw/net/xilinx_axi: Use object_initialize_child for correct ref. counting 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: Peter Maydell , Thomas Huth , Eduardo Habkost , Andrey Smirnov , Jason Wang , Alistair Francis , Jean-Christophe Dubois , Beniamino Galvani , Igor Mitsyanko , qemu-arm@nongnu.org, Peter Chubb , Antony Pavlov , "Edgar E. Iglesias" , Alistair Francis , =?utf-8?q?Philippe_Mathieu-Dau?= =?utf-8?q?d=C3=A9?= Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" As explained in commit aff39be0ed97: Both functions, object_initialize() and object_property_add_child() increase the reference counter of the new object, so one of the references has to be dropped afterwards to get the reference counting right. Otherwise the child object will not be properly cleaned up when the parent gets destroyed. Thus let's use now object_initialize_child() instead to get the reference counting here right. Reviewed-by: Alistair Francis Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Reviewed-by: Thomas Huth --- hw/net/xilinx_axienet.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/hw/net/xilinx_axienet.c b/hw/net/xilinx_axienet.c index d8716a1f73..2c8c065401 100644 --- a/hw/net/xilinx_axienet.c +++ b/hw/net/xilinx_axienet.c @@ -994,15 +994,14 @@ static void xilinx_enet_init(Object *obj) XilinxAXIEnet *s = XILINX_AXI_ENET(obj); SysBusDevice *sbd = SYS_BUS_DEVICE(obj); - object_initialize(&s->rx_data_dev, sizeof(s->rx_data_dev), - TYPE_XILINX_AXI_ENET_DATA_STREAM); - object_initialize(&s->rx_control_dev, sizeof(s->rx_control_dev), - TYPE_XILINX_AXI_ENET_CONTROL_STREAM); - object_property_add_child(OBJECT(s), "axistream-connected-target", - (Object *)&s->rx_data_dev, &error_abort); - object_property_add_child(OBJECT(s), "axistream-control-connected-target", - (Object *)&s->rx_control_dev, &error_abort); - + object_initialize_child(OBJECT(s), "axistream-connected-target", + &s->rx_data_dev, sizeof(s->rx_data_dev), + TYPE_XILINX_AXI_ENET_DATA_STREAM, &error_abort, + NULL); + object_initialize_child(OBJECT(s), "axistream-control-connected-target", + &s->rx_control_dev, sizeof(s->rx_control_dev), + TYPE_XILINX_AXI_ENET_CONTROL_STREAM, &error_abort, + NULL); sysbus_init_irq(sbd, &s->irq); memory_region_init_io(&s->iomem, OBJECT(s), &enet_ops, s, "enet", 0x40000);