drm/i915: fix oops on agp=off
From Kernel BZ 10289 - not sure why anyone would boot an intel with no agp
but it shouldn't crash.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c
index e9d6663..a043bb1 100644
--- a/drivers/char/drm/i915_dma.c
+++ b/drivers/char/drm/i915_dma.c
@@ -804,6 +804,9 @@
{
drm_i915_private_t *dev_priv = dev->dev_private;
+ if (!dev_priv)
+ return;
+
if (dev_priv->agp_heap)
i915_mem_takedown(&(dev_priv->agp_heap));