From patchwork Fri Dec 6 03:21:19 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiang Liu X-Patchwork-Id: 297550 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 92F992C00A6 for ; Fri, 6 Dec 2013 14:23:20 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756892Ab3LFDXE (ORCPT ); Thu, 5 Dec 2013 22:23:04 -0500 Received: from mga03.intel.com ([143.182.124.21]:56623 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752879Ab3LFDVY (ORCPT ); Thu, 5 Dec 2013 22:21:24 -0500 Received: from azsmga002.ch.intel.com ([10.2.17.35]) by azsmga101.ch.intel.com with ESMTP; 05 Dec 2013 19:21:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,838,1378882800"; d="scan'208";a="325986993" Received: from gerry-dev.bj.intel.com ([10.238.158.74]) by AZSMGA002.ch.intel.com with ESMTP; 05 Dec 2013 19:21:20 -0800 From: Jiang Liu To: Joerg Roedel , David Woodhouse , Dan Williams , Vinod Koul , Ashok Raj , Yijing Wang , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Cc: Jiang Liu , Tony Luck , Yinghai Lu , linux-pci@vger.kernel.org, dmaengine@vger.kernel.org Subject: [Patch Part1 V2 16/20] iommu/vt-d: release invalidation queue when destroying IOMMU unit Date: Fri, 6 Dec 2013 11:21:19 +0800 Message-Id: <1386300083-6882-17-git-send-email-jiang.liu@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1386300083-6882-1-git-send-email-jiang.liu@linux.intel.com> References: <1386300083-6882-1-git-send-email-jiang.liu@linux.intel.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Release associated invalidation queue when destroying IOMMU unit to avoid memory leak. Signed-off-by: Jiang Liu --- drivers/iommu/dmar.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index 812b596..a9d9d0f 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -745,6 +745,12 @@ static void free_iommu(struct intel_iommu *iommu) destroy_irq(iommu->irq); } + if (iommu->qi) { + free_page((unsigned long)iommu->qi->desc); + kfree(iommu->qi->desc_status); + kfree(iommu->qi); + } + if (iommu->reg) unmap_iommu(iommu);