[bug report] blktests nvme/022 lead kernel WARNING and NULL pointer

[Sagi Grimberg]

>> Hi Sagi
>>
>> Bisect shows bellow commits was the first bad commit.
>>
>> commit a70b81bd4d9d2d6c05cfe6ef2a10bccc2e04357a (refs/bisect/bad)
>> Author: Hannes Reinecke <hare at suse.de>
>> Date:   Fri Apr 16 13:46:20 2021 +0200
>>
>>      nvme: sanitize KATO setting
>>
> 
> Hi Sagi
> This issue has been consistently reproduced with blktests on recent
> linux-block/for-next, do you have a chance to check it?

I had not, Hannes can you have a look?