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drm/nouveau: audit bo->resource usage 

Make sure we can at least move and release BOs without backing store.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220707102453.3633-4-christian.koenig@amd.com
This commit is contained in:
Christian König 2021-12-17 16:30:16 +01:00
parent 63af82cf5e
commit 64e257f187
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/nouveau/nouveau_bo.c
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@ -1008,7 +1008,8 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict,
}
/* Fake bo copy. */
if (old_reg->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
if (!old_reg || (old_reg->mem_type == TTM_PL_SYSTEM &&
!bo->ttm)) {
ttm_bo_move_null(bo, new_reg);
goto out;
}