From patchwork Thu Jun 29 08:40:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Zhenzhong Duan X-Patchwork-Id: 1801418 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.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: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=co7LqUfu; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4QsC2G07yjz20XS for ; Thu, 29 Jun 2023 18:55:02 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qEnPO-0002JL-Hf; Thu, 29 Jun 2023 04:53:46 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qEnPM-0002Il-P1 for qemu-devel@nongnu.org; Thu, 29 Jun 2023 04:53:44 -0400 Received: from mga04.intel.com ([192.55.52.120]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qEnPL-0003fe-3M for qemu-devel@nongnu.org; Thu, 29 Jun 2023 04:53:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1688028823; x=1719564823; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=M9sOthnyrGqoEEYhYVxWzaWHTpau5NyEbkjO3zdN17c=; b=co7LqUfuzEyo5NO/tIUIhtWYN+YVnXyvbkSCBrV3DM3WodXSUyKgLMg+ twzYALzQGmiR1w6/3+fGfPO0cH0xehLhNt7b5bv1HrIgVugaFpTVBPxci Mf/OG4Fo1M0OVkggkTAgJG43sxkX09GGQJrTZkNQT6QC/7rCXBcOuwCf0 V5A+ReitBNEMdED5Kyy64J/A7D8TLJ2g5tRgSxc3a4FNJpX7qe+E/GQfc 2AnfRaQ9SAyq0HyENzd3EnsRoz/sJdasOobxIVMt5eTUuyS5LEKhpevOM Ug6z8iyYIAEa0QZr/0yUEdo4mYUqc3n0P5jkei7P/6Sh//4SCpNYT8ZI5 w==; X-IronPort-AV: E=McAfee;i="6600,9927,10755"; a="360908856" X-IronPort-AV: E=Sophos;i="6.01,168,1684825200"; d="scan'208";a="360908856" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jun 2023 01:53:41 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10755"; a="720494337" X-IronPort-AV: E=Sophos;i="6.01,168,1684825200"; d="scan'208";a="720494337" Received: from duan-server-s2600bt.bj.intel.com ([10.240.192.147]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jun 2023 01:53:39 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, joao.m.martins@oracle.com, avihaih@nvidia.com, chao.p.peng@intel.com Subject: [PATCH v4 2/5] vfio/pci: Free leaked timer in vfio_realize error path Date: Thu, 29 Jun 2023 16:40:39 +0800 Message-Id: <20230629084042.86502-3-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230629084042.86502-1-zhenzhong.duan@intel.com> References: <20230629084042.86502-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.55.52.120; envelope-from=zhenzhong.duan@intel.com; helo=mga04.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org When vfio_realize fails, the mmap_timer used for INTx optimization isn't freed. As this timer isn't activated yet, the potential impact is just a piece of leaked memory. Fixes: ea486926b07d ("vfio-pci: Update slow path INTx algorithm timer related") Signed-off-by: Zhenzhong Duan Reviewed-by: Joao Martins Reviewed-by: Cédric Le Goater --- hw/vfio/pci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 48df517f79ee..ab6645ba60af 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3224,6 +3224,9 @@ out_deregister: if (vdev->irqchip_change_notifier.notify) { kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier); } + if (vdev->intx.mmap_timer) { + timer_free(vdev->intx.mmap_timer); + } out_teardown: vfio_teardown_msi(vdev); vfio_bars_exit(vdev);