From patchwork Tue Feb 18 09:11:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Qun X-Patchwork-Id: 11388095 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 2A39B139A for ; Tue, 18 Feb 2020 09:15:04 +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 0C41624125 for ; Tue, 18 Feb 2020 09:15:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0C41624125 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.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]:58612 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j3yy7-000339-5u for patchwork-qemu-devel@patchwork.kernel.org; Tue, 18 Feb 2020 04:15:03 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39030) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j3yxO-0001Rf-QL for qemu-devel@nongnu.org; Tue, 18 Feb 2020 04:14:19 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j3yxN-0000uk-Oq for qemu-devel@nongnu.org; Tue, 18 Feb 2020 04:14:18 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:43354 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j3yxN-0000rz-Dd; Tue, 18 Feb 2020 04:14:17 -0500 Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 0F6BFCCF683006166240; Tue, 18 Feb 2020 17:14:08 +0800 (CST) Received: from HGHY4C002233111.china.huawei.com (10.133.205.93) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.439.0; Tue, 18 Feb 2020 17:13:58 +0800 From: To: , , , , , , Subject: [PATCH 0/3]hw: Fixs memleak of fdevice tree blob Date: Tue, 18 Feb 2020 17:11:51 +0800 Message-ID: <20200218091154.21696-1-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: 45.249.212.32 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: qemu-trivial@nongnu.org, pbonzini@redhat.com, pannengyuan@huawei.com, zhang.zhanghailiang@huawei.com, Chen Qun Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Chen Qun The device tree blob returned by load_device_tree is malloced. We should free it after cpu_physical_memory_write().Otherwise, if we repeatedly call 'system_reset',it will repeatedly load fdt, so there are many memleaks. Paolo Bonzini : https://lists.gnu.org/archive/html/qemu-devel/2019-10/msg00129.html Pan Nengyuan: https://lists.gnu.org/archive/html/qemu-devel/2020-02/msg03594.html After searching the device code, I found three similar issues. This series fixes the last three. Chen Qun (3): hw/nios2:fix leak of fdevice tree blob hw/ppc/virtex_ml507:fix leak of fdevice tree blob hw/xtensa/xtfpga:fix leak of fdevice tree blob hw/nios2/boot.c | 1 + hw/ppc/virtex_ml507.c | 1 + hw/xtensa/xtfpga.c | 1 + 3 files changed, 3 insertions(+)