Revert "drm/radeon: fix bo creation retry path"

commit 676bc2e1 upstream.

This reverts commit d1c7871d.

ttm_bo_init() destroys the BO on failure. So this patch makes
the retry path work with freed memory.  This ends up causing
kernel panics when this path is hit.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

drivers/gpu/drm/radeon/radeon_object.c

@@ -117,6 +117,7 @@ int radeon_bo_create(struct radeon_device *rdev,
 		return -ENOMEM;
 	}
 
+retry:
 	bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
 	if (bo == NULL)
 		return -ENOMEM;
@@ -129,8 +130,6 @@ int radeon_bo_create(struct radeon_device *rdev,
 	bo->gem_base.driver_private = NULL;
 	bo->surface_reg = -1;
 	INIT_LIST_HEAD(&bo->list);
-
-retry:
 	radeon_ttm_placement_from_domain(bo, domain);
 	/* Kernel allocation are uninterruptible */
 	mutex_lock(&rdev->vram_mutex);