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authorChristian König <[email protected]>2021-12-17 15:13:09 +0000
committerChristian König <[email protected]>2022-07-11 08:59:20 +0000
commit63af82cf5e36b6ba3f3ebcdd1edd9f91934bfa59 (patch)
treeecf8af219352c5baa14bb97fd2d7c85bceb4c7e2 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
parentdrm/ttm: rename and cleanup ttm_bo_init (diff)
downloadkernel-63af82cf5e36b6ba3f3ebcdd1edd9f91934bfa59.tar.gz
kernel-63af82cf5e36b6ba3f3ebcdd1edd9f91934bfa59.zip
drm/amdgpu: audit bo->resource usage
Make sure we can at least move and release BOs without backing store. Signed-off-by: Christian König <[email protected]> Reviewed-by: Michael J. Ruhl <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index be6f76a30ac6..3bddf266e8b5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -471,7 +471,8 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
adev = amdgpu_ttm_adev(bo->bdev);
- if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
+ if (!old_mem || (old_mem->mem_type == TTM_PL_SYSTEM &&
+ bo->ttm == NULL)) {
ttm_bo_move_null(bo, new_mem);
goto out;
}