From ce2cd141c36f330da7e9fb9a281e51abab88e0d1 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Mon, 3 Nov 2008 09:46:07 +1000
Subject: radeon: fix race in sysfs

---
 linux-core/radeon_drv.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/linux-core/radeon_drv.c b/linux-core/radeon_drv.c
index 3bc0c057..f7881720 100644
--- a/linux-core/radeon_drv.c
+++ b/linux-core/radeon_drv.c
@@ -60,8 +60,12 @@ module_param_named(agpmode, radeon_agpmode, int, 0444);
 static int dri_library_name(struct drm_device * dev, char * buf)
 {
 	drm_radeon_private_t *dev_priv = dev->dev_private;
-	int family = dev_priv->flags & RADEON_FAMILY_MASK;
+	int family;
 
+	if (!dev_priv)
+		return 0;
+
+	family = dev_priv->flags & RADEON_FAMILY_MASK;
 	return snprintf(buf, PAGE_SIZE, "%s\n",
 		(family < CHIP_R200) ? "radeon" :
 		((family < CHIP_R300) ? "r200" :
-- 
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