From patchwork Thu Feb 13 02:56:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 1237218 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com 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 ozlabs.org (Postfix) with ESMTPS id 48J1PY0bWWz9sRR for ; Thu, 13 Feb 2020 13:56:47 +1100 (AEDT) Received: from localhost ([::1]:46594 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j24gG-0000X4-8B for incoming@patchwork.ozlabs.org; Wed, 12 Feb 2020 21:56:44 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:57757) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j24fs-0000Ww-C3 for qemu-devel@nongnu.org; Wed, 12 Feb 2020 21:56:21 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j24fq-0003U6-Mg for qemu-devel@nongnu.org; Wed, 12 Feb 2020 21:56:20 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:55366 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j24fq-0003Nq-Bj; Wed, 12 Feb 2020 21:56:18 -0500 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id AFAF19510F785A03DCE3; Thu, 13 Feb 2020 10:56:12 +0800 (CST) Received: from HGHY4C002233111.china.huawei.com (10.133.205.93) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.439.0; Thu, 13 Feb 2020 10:56:06 +0800 From: To: , , Subject: [PATCH v2] hw/char/exynos4210_uart: Fix memleaks in exynos4210_uart_init Date: Thu, 13 Feb 2020 10:56:03 +0800 Message-ID: <20200213025603.149432-1-kuhn.chenqun@huawei.com> X-Mailer: git-send-email 2.14.1.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.133.205.93] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.35 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: ehabkost@redhat.com, qemu-trivial@nongnu.org, armbru@redhat.com, Chen Qun , philmd@redhat.com, zhang.zhanghailiang@huawei.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Chen Qun It's easy to reproduce as follow: virsh qemu-monitor-command vm1 --pretty '{"execute": "device-list-properties", "arguments":{"typename":"exynos4210.uart"}}' ASAN shows memory leak stack: #1 0xfffd896d71cb in g_malloc0 (/lib64/libglib-2.0.so.0+0x571cb) #2 0xaaad270beee3 in timer_new_full /qemu/include/qemu/timer.h:530 #3 0xaaad270beee3 in timer_new /qemu/include/qemu/timer.h:551 #4 0xaaad270beee3 in timer_new_ns /qemu/include/qemu/timer.h:569 #5 0xaaad270beee3 in exynos4210_uart_init /qemu/hw/char/exynos4210_uart.c:677 #6 0xaaad275c8f4f in object_initialize_with_type /qemu/qom/object.c:516 #7 0xaaad275c91bb in object_new_with_type /qemu/qom/object.c:684 #8 0xaaad2755df2f in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:152 Reported-by: Euler Robot Signed-off-by: Chen Qun Reviewed-by: Philippe Mathieu-Daudé --- Changes V2 to V1: -Keep s->wordtime in exynos4210_uart_init (Base on Eduardo and Philippe's comments). --- hw/char/exynos4210_uart.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/char/exynos4210_uart.c b/hw/char/exynos4210_uart.c index 25d6588e41..96d5180e3e 100644 --- a/hw/char/exynos4210_uart.c +++ b/hw/char/exynos4210_uart.c @@ -674,8 +674,6 @@ static void exynos4210_uart_init(Object *obj) SysBusDevice *dev = SYS_BUS_DEVICE(obj); Exynos4210UartState *s = EXYNOS4210_UART(dev); - s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, - exynos4210_uart_timeout_int, s); s->wordtime = NANOSECONDS_PER_SECOND * 10 / 9600; /* memory mapping */ @@ -691,6 +689,9 @@ static void exynos4210_uart_realize(DeviceState *dev, Error **errp) { Exynos4210UartState *s = EXYNOS4210_UART(dev); + s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, + exynos4210_uart_timeout_int, s); + qemu_chr_fe_set_handlers(&s->chr, exynos4210_uart_can_receive, exynos4210_uart_receive, exynos4210_uart_event, NULL, s, NULL, true);