From patchwork Mon Aug 17 15:12:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 266502 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1AA3C433DF for ; Mon, 17 Aug 2020 15:28:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE25E23B23 for ; Mon, 17 Aug 2020 15:28:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597678128; bh=xdoyQXyF72FtUFPSXhWHvSJWOV8YBtDyng3jIj+DsCE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=LiJcLxMRnrw/0gRX8XC5fp3VNeFCJS0ejjjgvCG/EqUfmrtJDvd7H7OLDc+4/iNHe G5kry8nRxieAqLpn9dh+NNaAxqcJAAI7ZJe/Vvm9cmdYUXC3QyXATUlbkJ/MNSPwuj YcKIHJa2PKi6KoLhckWOnMy/XhfCyo/UDFwElUfA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730021AbgHQP2n (ORCPT ); Mon, 17 Aug 2020 11:28:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:44016 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729542AbgHQP2f (ORCPT ); Mon, 17 Aug 2020 11:28:35 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9B32923AFE; Mon, 17 Aug 2020 15:28:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597678115; bh=xdoyQXyF72FtUFPSXhWHvSJWOV8YBtDyng3jIj+DsCE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YIMe0Kz1HhRzwaYzk2e6AaCc4IRMiy1rVHLhJRu3oTSgievMvAb91DO9TiN2RzDG+ U7zXg3xoS+n+16YAzo3Ut963rs/SfIGzC6pbClKnY1yxhaAynvvSpCRhaNpYel8k68 n/UxmmAhzVc9nKTTenBo1ceqphFF+WEP7y3OJzm8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chen Tao , Alex Deucher , Sasha Levin Subject: [PATCH 5.8 193/464] drm/amdgpu/debugfs: fix memory leak when amdgpu_virt_enable_access_debugfs failed Date: Mon, 17 Aug 2020 17:12:26 +0200 Message-Id: <20200817143843.068083865@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200817143833.737102804@linuxfoundation.org> References: <20200817143833.737102804@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Chen Tao [ Upstream commit 888e32d71115e26b57bdcbc717c68e9c5026bac3 ] Fix memory leak in amdgpu_debugfs_gpr_read not freeing data when amdgpu_virt_enable_access_debugfs failed. Fixes: 95a2f917387a2 ("drm/amdgpu: restrict debugfs register access under SR-IOV") Signed-off-by: Chen Tao Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index 386b979e08522..f87b225437fc3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -977,7 +977,7 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf, r = amdgpu_virt_enable_access_debugfs(adev); if (r < 0) - return r; + goto err; /* switch to the specific se/sh/cu */ mutex_lock(&adev->grbm_idx_mutex);