drm/amdgpu: amdgpu_device_recover_vram got NULL of shadow->parent

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amdgpu_bo_destroy had a bug by calling amdgpu_bo_unref outside mutex_lock.
If amdgpu_device_recover_vram executed between amdgpu_bo_unref and list_del_init,
it would get NULL of shadow->parent, then caused Call Trace and GPU reset failed.

Signed-off-by: Wentao Lou <Wentao.Lou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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wentalou 2019-04-16 15:09:16 +08:00 • committed by Alex Deucher

parent 20299a8812

commit 36e499b249

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_object.c

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