drm/ttm: cleanup the resource of ghost objects after locking them

Otherwise lockdep will complain about cleaning up the bulk_move.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907100051.570641-1-christian.koenig@amd.com
Fixes: d91c411 ("drm/ttm: update bulk move object of ghost BO")

Author: ChristianKoenigAMD

drivers/gpu/drm/ttm/ttm_bo_util.c

@@ -236,6 +236,11 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
 	if (bo->type != ttm_bo_type_sg)
 		fbo->base.base.resv = &fbo->base.base._resv;
 
+	dma_resv_init(&fbo->base.base._resv);
+	fbo->base.base.dev = NULL;
+	ret = dma_resv_trylock(&fbo->base.base._resv);
+	WARN_ON(!ret);
+
 	if (fbo->base.resource) {
 		ttm_resource_set_bo(fbo->base.resource, &fbo->base);
 		bo->resource = NULL;
@@ -244,11 +249,6 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
 		fbo->base.bulk_move = NULL;
 	}
 
-	dma_resv_init(&fbo->base.base._resv);
-	fbo->base.base.dev = NULL;
-	ret = dma_resv_trylock(&fbo->base.base._resv);
-	WARN_ON(!ret);
-
 	ret = dma_resv_reserve_fences(&fbo->base.base._resv, 1);
 	if (ret) {
 		kfree(fbo);