From patchwork Fri Oct 8 12:45:42 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 241181 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o98CfSjl026002 for ; Fri, 8 Oct 2010 12:41:49 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9222FA0A38 for ; Fri, 8 Oct 2010 05:41:28 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (server109-228-6-235.live-servers.net [109.228.6.235]) by gabe.freedesktop.org (Postfix) with ESMTP id 951FAA09DB for ; Fri, 8 Oct 2010 05:41:11 -0700 (PDT) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.66.37; Received: from arrandale.alporthouse.com (unverified [78.156.66.37]) by fireflyinternet.com (Firefly Internet SMTP) with ESMTP id 11970285-1500050 for multiple; Fri, 08 Oct 2010 13:40:56 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Fri, 8 Oct 2010 13:45:42 +0100 Message-Id: <1286541942-24368-1-git-send-email-chris@chris-wilson.co.uk> X-Mailer: git-send-email 1.7.1 X-Originating-IP: 78.156.66.37 Cc: Daniel Vetter , stable@kernel.org Subject: [Intel-gfx] [PATCH] drm/i915: Prevent module unload to avoid random memory corruption X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Fri, 08 Oct 2010 12:41:49 +0000 (UTC) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index c74e4e8..2dd2c93 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -2231,6 +2231,9 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) dev_priv->mchdev_lock = &mchdev_lock; spin_unlock(&mchdev_lock); + /* XXX Prevent module unload due to memory corruption bugs. */ + __module_get(THIS_MODULE); + return 0; out_workqueue_free: