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drm/amdgpu: fix amdgpu_vm_fini 

We should not remove mappings in rbtree_postorder_for_each_entry_safe
because that rebalances the tree.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-10-18 14:29:28 +02:00 committed by Alex Deucher
parent 3732eb0683
commit 0af5c656fd
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -3234,8 +3234,10 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
}
rbtree_postorder_for_each_entry_safe(mapping, tmp,
&vm->va.rb_root, rb) {
/* Don't remove the mapping here, we don't want to trigger a
* rebalance and the tree is about to be destroyed anyway.
*/
list_del(&mapping->list);
amdgpu_vm_it_remove(mapping, &vm->va);
kfree(mapping);
}
list_for_each_entry_safe(mapping, tmp, &vm->freed, list) {