From: Nicolai Hähnle <nicolai.haehnle@xxxxxxx>
This reverts commit 38fc4856ad98f230bc91da0421dec69e4aee40f8, which
introduces a use-after-free.
The underlying bug should be properly fixed with "drm/ttm: never add BO
that failed to validate to the LRU list".
Cc: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Cc: zhoucm1 <david1.zhou at amd.com>
Signed-off-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 556236a..d1ef1d0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -403,11 +403,8 @@ int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
&bo->placement, page_align, !kernel, NULL,
acc_size, sg, resv ? resv : &bo->tbo.ttm_resv,
&amdgpu_ttm_bo_destroy);
- if (unlikely(r != 0)) {
- if (!resv)
- ww_mutex_unlock(&bo->tbo.resv->lock);
+ if (unlikely(r != 0))
return r;
- }
bo->tbo.priority = ilog2(bo->tbo.num_pages);
if (kernel)
--
2.9.3
