[Intel-gfx] [PATCH i-g-t] tools/intel_gpu_top: Restore user friendly error message

[Tvrtko Ursulin]

On 29/09/2023 16:40, Umesh Nerlige Ramappa wrote:
> On Fri, Sep 29, 2023 at 12:09:49PM +0100, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>>
>> We have a nice error message displayed when an user with insufficient
>> permissions tries to run the tool, but that got lost while Meteorlake
>> support was added. Bring it back in.
>>
>> v2:
>> * Propagate unexpected errno on multi-tile systems too. (Umesh)
>>
>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>> Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>
>> ---
>> tools/intel_gpu_top.c | 8 +++++---
>> 1 file changed, 5 insertions(+), 3 deletions(-)
>>
>> diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
>> index 87e9681e53b4..10601e66b18e 100644
>> --- a/tools/intel_gpu_top.c
>> +++ b/tools/intel_gpu_top.c
>> @@ -554,9 +554,9 @@ static int get_num_gts(uint64_t type)
>>
>>         close(fd);
>>     }
>> -    assert(!errno || errno == ENOENT);
>> -    assert(cnt > 0);
>> -    errno = 0;
>> +
>> +    if (!cnt || (errno && errno != ENOENT))
>> +        cnt = -errno;
> 
> Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>

Pushed, thanks!

Regards,

Tvrtko