From: oga <oga@openbsd.org>
Date: Thu, 28 Aug 2008 01:51:52 +0000 (+0000)
Subject: set sarea_priv to NULL to prevent possible access on next open/close.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=ba04ea546ea32bb53f7dc10a37bc5fb303c515a3;p=openbsd

set sarea_priv to NULL to prevent possible access on next open/close.

From Robert Noland via drm git.
---

diff --git a/sys/dev/pci/drm/i915_dma.c b/sys/dev/pci/drm/i915_dma.c
index 92edca50434..7d50c29103a 100644
--- a/sys/dev/pci/drm/i915_dma.c
+++ b/sys/dev/pci/drm/i915_dma.c
@@ -984,6 +984,8 @@ void i915_driver_lastclose(struct drm_device * dev)
 
 	if (drm_getsarea(dev) && dev_priv->sarea_priv)
 		i915_do_cleanup_pageflip(dev);
+	dev_priv->sarea_priv = NULL;
+
 	if (dev_priv->agp_heap)
 		i915_mem_takedown(&(dev_priv->agp_heap));
 	i915_dma_cleanup(dev);