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drm/amd/amdgpu: Check tbo resource pointer
[ Upstream commit 6cd2b87264
]
Validate tbo resource pointer, skip if NULL
Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -4480,7 +4480,8 @@ static int amdgpu_device_recover_vram(struct amdgpu_device *adev)
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shadow = vmbo->shadow;
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shadow = vmbo->shadow;
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/* No need to recover an evicted BO */
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/* No need to recover an evicted BO */
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if (shadow->tbo.resource->mem_type != TTM_PL_TT ||
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if (!shadow->tbo.resource ||
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shadow->tbo.resource->mem_type != TTM_PL_TT ||
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shadow->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET ||
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shadow->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET ||
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shadow->parent->tbo.resource->mem_type != TTM_PL_VRAM)
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shadow->parent->tbo.resource->mem_type != TTM_PL_VRAM)
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continue;
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continue;
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