From patchwork Tue Apr 12 06:29:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 560263 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6EC61C3A59E for ; Tue, 12 Apr 2022 08:11:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356538AbiDLIKh (ORCPT ); Tue, 12 Apr 2022 04:10:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357310AbiDLHj6 (ORCPT ); Tue, 12 Apr 2022 03:39:58 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3BA322BD7; Tue, 12 Apr 2022 00:14:52 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 101D86171D; Tue, 12 Apr 2022 07:14:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F5CEC385A6; Tue, 12 Apr 2022 07:14:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649747691; bh=eb7nnM0s4xYIrHZ2PbOhZjzA+Mg+TlIe/T74eJ5JG9s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rircHKnu1ZWbv5K3Ltmyy2rusdIg8i6jz8goSq9bL/rz+/Cx7FU0XJ7MqCtsPZjvi Dl0ADT1hpJnunjZu+hAGSEz2VbslW2p7NqxWfGi3mDYcpo3TJrWVc5j8LKy4ALUXpi g5rAmuZxVAga+KVEpOa6jKkjpV87gB9Uc1qhtOTA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ohad Sharabi , Oded Gabbay , Sasha Levin Subject: [PATCH 5.17 171/343] habanalabs: fix possible memory leak in MMU DR fini Date: Tue, 12 Apr 2022 08:29:49 +0200 Message-Id: <20220412062956.305151284@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220412062951.095765152@linuxfoundation.org> References: <20220412062951.095765152@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ohad Sharabi [ Upstream commit eb85eec858c1a5c11d3a0bff403f6440b05b40dc ] This patch fixes what seems to be copy paste error. We will have a memory leak if the host-resident shadow is NULL (which will likely happen as the DR and HR are not dependent). Signed-off-by: Ohad Sharabi Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay Signed-off-by: Sasha Levin --- drivers/misc/habanalabs/common/mmu/mmu_v1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/habanalabs/common/mmu/mmu_v1.c b/drivers/misc/habanalabs/common/mmu/mmu_v1.c index 6134b6ae7615..3cadef97817d 100644 --- a/drivers/misc/habanalabs/common/mmu/mmu_v1.c +++ b/drivers/misc/habanalabs/common/mmu/mmu_v1.c @@ -467,7 +467,7 @@ static void hl_mmu_v1_fini(struct hl_device *hdev) { /* MMU H/W fini was already done in device hw_fini() */ - if (!ZERO_OR_NULL_PTR(hdev->mmu_priv.hr.mmu_shadow_hop0)) { + if (!ZERO_OR_NULL_PTR(hdev->mmu_priv.dr.mmu_shadow_hop0)) { kvfree(hdev->mmu_priv.dr.mmu_shadow_hop0); gen_pool_destroy(hdev->mmu_priv.dr.mmu_pgt_pool);