From patchwork Tue Jul 14 13:58:30 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Christian_K=C3=B6nig?= X-Patchwork-Id: 6787381 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id CD9D69F3E6 for ; Tue, 14 Jul 2015 13:58:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 00D2D206F5 for ; Tue, 14 Jul 2015 13:58:42 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 758FC206EA for ; Tue, 14 Jul 2015 13:58:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AB92C6E3A5; Tue, 14 Jul 2015 06:58:39 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from pegasos-out.vodafone.de (pegasos-out.vodafone.de [80.84.1.38]) by gabe.freedesktop.org (Postfix) with ESMTP id 4956C6E3A5 for ; Tue, 14 Jul 2015 06:58:38 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by pegasos-out.vodafone.de (Rohrpostix2 Daemon) with ESMTP id 4FA141726B8; Tue, 14 Jul 2015 15:58:35 +0200 (CEST) X-Virus-Scanned: amavisd-new at vodafone.de X-Spam-Score: -0.044 X-Spam-Level: X-Spam-Status: No, score=-5.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, FREEMAIL_FROM,RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Authentication-Results: rohrpostix2.prod.vfnet.de (amavisd-new); dkim=pass header.i=@vodafone.de Received: from pegasos-out.vodafone.de ([127.0.0.1]) by localhost (rohrpostix2.prod.vfnet.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OvcU3ji+SK6S; Tue, 14 Jul 2015 15:58:33 +0200 (CEST) Received: from smtp-02.vodafone.de (smtp-02.vodafone.de [10.215.254.37]) by pegasos-out.vodafone.de (Rohrpostix2 Daemon) with ESMTP id C6E371726B5; Tue, 14 Jul 2015 15:58:33 +0200 (CEST) X-DKIM: OpenDKIM Filter v2.6.8 pegasos-out.vodafone.de C6E371726B5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vodafone.de; s=mail; t=1436882313; bh=/F+sz1meSa6CN3TZCPYfcw9lqUThh+ZJA+WUJsKD+uk=; h=From:To:Cc:Subject:Date; b=K8a5u8piStQj36VRm031CP3J4SXwSgc7ZRoQdCao+Jdsp7NtK7ITEmqg94t76nmSZ RfWhBpTK+tloIgiIu98qmbnAo4O1D+ZaTwl1PF+ZxHd5o+JhyOPKwpo9OAmRE1f/Ma MwMUulyiTI1P66hcq/6h71UMSUrCvrNL5Oh+1VEA= X-Virus-Scanned: amavisd-new at vodafone.de Received: from smtp-02.vodafone.de ([127.0.0.1]) by localhost (xsmail-dmz6.prod.vfnet.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SZW3b8H8d85D; Tue, 14 Jul 2015 15:58:31 +0200 (CEST) Received: from laptop.amd.com (aftr-37-201-240-235.unity-media.net [37.201.240.235]) by smtp-02.vodafone.de (Postfix) with ESMTPA id AE2A2E8665; Tue, 14 Jul 2015 15:58:31 +0200 (CEST) From: =?UTF-8?q?Christian=20K=C3=B6nig?= To: alexdeucher@gmail.com Subject: [PATCH] drm/radeon: fix user ptr race condition Date: Tue, 14 Jul 2015 15:58:30 +0200 Message-Id: <1436882310-9958-1-git-send-email-deathsimple@vodafone.de> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Cc: dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Christian König Port of amdgpu patch 9298e52f8b51d1e4acd68f502832f3a97f8cf892. Signed-off-by: Christian König CC: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_gem.c | 1 + drivers/gpu/drm/radeon/radeon_object.c | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 013ec71..3dcc573 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -36,6 +36,7 @@ void radeon_gem_object_free(struct drm_gem_object *gobj) if (robj) { if (robj->gem_base.import_attach) drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg); + radeon_mn_unregister(robj); radeon_bo_unref(&robj); } } diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 318165d..6763627 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -75,7 +75,6 @@ static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo) bo = container_of(tbo, struct radeon_bo, tbo); radeon_update_memory_usage(bo, bo->tbo.mem.mem_type, -1); - radeon_mn_unregister(bo); mutex_lock(&bo->rdev->gem.mutex); list_del_init(&bo->list);