From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF055C433EF for ; Wed, 20 Oct 2021 13:24:36 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 81CF7610A2 for ; Wed, 20 Oct 2021 13:24:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 81CF7610A2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ozlabs.ru Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4HZBD16Pfhz3clB for ; Thu, 21 Oct 2021 00:24:33 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.ru (client-ip=107.174.27.60; helo=ozlabs.ru; envelope-from=aik@ozlabs.ru; receiver=) Received: from ozlabs.ru (ozlabs.ru [107.174.27.60]) by lists.ozlabs.org (Postfix) with ESMTP id 4HZBCL1P5Yz3cRk for ; Thu, 21 Oct 2021 00:23:58 +1100 (AEDT) Received: from fstn1-p1.ozlabs.ibm.com. (localhost [IPv6:::1]) by ozlabs.ru (Postfix) with ESMTP id EE3F9AE8024B; Wed, 20 Oct 2021 09:23:24 -0400 (EDT) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH kernel 2/4] powerpc/pseries/iommu: Use correct vfree for it_map Date: Thu, 21 Oct 2021 00:23:13 +1100 Message-Id: <20211020132315.2287178-3-aik@ozlabs.ru> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211020132315.2287178-1-aik@ozlabs.ru> References: <20211020132315.2287178-1-aik@ozlabs.ru> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Frederic Barrat , Brian King , Alexey Kardashevskiy , Leonardo Bras Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The it_map array is vzalloc'ed so use vfree() for it when creating a huge DMA window failed for whatever reason. While at this, write zero to it_map. Fixes: 381ceda88c4c ("powerpc/pseries/iommu: Make use of DDW for indirect mapping") Signed-off-by: Alexey Kardashevskiy --- arch/powerpc/platforms/pseries/iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 09d59088864a..45564547cd80 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -1440,7 +1440,8 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn) /* Keep default DMA window stuct if removed */ if (default_win_removed) { tbl->it_size = 0; - kfree(tbl->it_map); + vfree(tbl->it_map); + tbl->it_map = NULL; } set_iommu_table_base(&dev->dev, newtbl); -- 2.30.2