Can no longer shutdown after drm/radeon: Implement radeon_pci_shutdown

[Peter Chubb]

On my HP Elitebook 8740w qith a Mobility Radeon HD 5870
commit 846ae41ae99d314bf2a02784152208a6ddf7eddc
breaks shutdown.  The machine hangs when trying to shutdown, kexec or
hibernate, before seeing the usual `machine halted' (or whatever) message.

If I comment out thus:

index 9f5ff28..40bff3c 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -514,7 +514,7 @@ radeon_pci_shutdown(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 
-	radeon_driver_unload_kms(dev);
+	/*radeon_driver_unload_kms(dev);*/
 }
 
then everything works again.  Thsi is obviously not the proper fix.

--
Dr Peter Chubb				        peter.chubb AT nicta.com.au
http://www.ssrg.nicta.com.au          Software Systems Research Group/NICTA