[PATCH] drm/amdgpu: fix a vm_flush fence leak

[Christian König]

Am 24.10.2016 um 04:32 schrieb zhoucm1:
>
>
> On 2016年10月24日 02:31, Grazvydas Ignotas wrote:
>> Looks like .last_flush reference is left at teardown.
>> Leak reported by CONFIG_SLUB_DEBUG.
>>
>> Fixes: 41d9eb2c5a2a ("drm/amdgpu: add a fence after the VM flush")
>> Signed-off-by: Grazvydas Ignotas <notasas at gmail.com>
> Reviewed-by: Chunming Zhou <david1.zhou at amd.com>

Reviewed-by: Christian König <christian.koenig at amd.com>.

>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c 
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> index ded57dd..d6c2839 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
>> @@ -1774,5 +1774,6 @@ void amdgpu_vm_manager_fini(struct 
>> amdgpu_device *adev)
>>           fence_put(adev->vm_manager.ids[i].first);
>> amdgpu_sync_free(&adev->vm_manager.ids[i].active);
>>           fence_put(id->flushed_updates);
>> +        fence_put(id->last_flush);
>>       }
>>   }
>
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