[PATCH 01/12] drm/amdgpu: add missing error handling

[Christian König]

Am 27.09.2018 um 12:00 schrieb Huang Rui:
> On Wed, Sep 26, 2018 at 03:53:19PM +0200, Christian König wrote:
>> We ignored the return code here.
>>
>> Signed-off-by: Christian König <christian.koenig at amd.com>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> index f35d7a554ad5..2420ae90047e 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> @@ -959,6 +959,9 @@ static int gmc_v9_0_sw_init(void *handle)
>>   	/* This interrupt is VMC page fault.*/
>>   	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC, VMC_1_0__SRCID__VM_FAULT,
>>   				&adev->gmc.vm_fault);
>> +	if (r)
>> +		return r;
>> +
>>   	r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2, UTCL2_1_0__SRCID__FAULT,
>>   				&adev->gmc.vm_fault);
>>   
> We should tear down the client source that allocated by the
> SOC15_IH_CLIENTID_VMC (the last one) if it (the second one) gets failed.

There is no such thing as a teardown. amdgpu_irq_add_id() registers the 
irq callback for the clientid/srcid combination, but there isn't an 
unregister function.

Christian.

>
> Thanks,
> Ray
>
>> -- 
>> 2.14.1
>>
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