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(parent: 20299a8) | patch
drm/amdgpu: amdgpu_device_recover_vram got NULL of shadow->parent
authorwentalou <Wentao.Lou@amd.com>
Tue, 16 Apr 2019 07:09:16 +0000 (15:09 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 19 Apr 2019 16:32:56 +0000 (11:32 -0500)
commit36e499b2490a470a9a1e8d40096b4e397efac056
treefef6911264842396f259da6cd03f8dce66c56437tree | snapshot
parent20299a8812dccdd24acfaa5f935fa8d81222bf9ccommit | diff
drm/amdgpu: amdgpu_device_recover_vram got NULL of shadow->parent

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>
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c diff | blob | history