[PATCH libdrm] amdgpu: When couldn't find bo, need to return error.

[Deng, Emily]

Ok, then just ignore this patch. But seems didn't saw the patch on branch amd-staging-hybrid-master20180315.

Best wishes
Emily Deng

>-----Original Message-----
>From: Christian König <ckoenig.leichtzumerken at gmail.com>
>Sent: Saturday, September 1, 2018 4:17 PM
>To: Deng, Emily <Emily.Deng at amd.com>; amd-gfx at lists.freedesktop.org
>Subject: Re: [PATCH libdrm] amdgpu: When couldn't find bo, need to return
>error.
>
>Am 01.09.2018 um 06:24 schrieb Emily Deng:
>> The startx will have segmant fault if return success.
>>
>> SWDEV-163962
>>
>> Change-Id: I56b189fa26efdcd1d96e5100af3f3e0b1208b0c3
>> Signed-off-by: Emily Deng <Emily.Deng at amd.com>
>
>Jerry already send a much better patch for this.
>
>> ---
>>   amdgpu/amdgpu_bo.c | 4 +++-
>>   1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/amdgpu/amdgpu_bo.c b/amdgpu/amdgpu_bo.c index
>> f25cacc..7e297fa 100644
>> --- a/amdgpu/amdgpu_bo.c
>> +++ b/amdgpu/amdgpu_bo.c
>> @@ -760,6 +760,7 @@ int
>amdgpu_find_bo_by_cpu_mapping(amdgpu_device_handle dev,
>>   				  uint64_t *offset_in_bo)
>>   {
>>   	uint32_t i;
>> +	int r = 0;
>>   	struct amdgpu_bo *bo;
>>
>>   	if (cpu == NULL || size == 0)
>> @@ -787,10 +788,11 @@ int
>amdgpu_find_bo_by_cpu_mapping(amdgpu_device_handle dev,
>>   	} else {
>>   		*buf_handle = NULL;
>>   		*offset_in_bo = 0;
>> +		r = -errno;
>
>errno doesn't contain any error in this case.
>
>>   	}
>>   	pthread_mutex_unlock(&dev->bo_table_mutex);
>>
>> -	return 0;
>> +	return r;
>>   }
>>
>>   int amdgpu_create_bo_from_user_mem(amdgpu_device_handle dev,