Re: [PATCH v2 1/2] nvdimm: Fix devs leaks in scan_labels()

["Zhijian Li (Fujitsu)" <lizhijian@fujitsu.com>]

On 10/08/2024 06:55, Dan Williams wrote:
> Dan Williams wrote:
> [..]
>> @@ -2036,12 +2038,10 @@ static struct device **scan_labels(struct nd_region *nd_region)
> 
> ...of course you would also need something like:
> 
> if (!count) {
> 	kfree(devs);
> 	return NULL;
> }

It seems we don't need this cleanup, in the count=0 case, we would reach `err` to free devs.

Thanks
Zhijian


> 
> ...here, I'll leave that to you to fix up and test.
> 
>>          return devs;
>>   
>>    err:
>> -       if (devs) {
>> -               for (i = 0; devs[i]; i++)
>> -                       namespace_pmem_release(devs[i]);
>> -               kfree(devs);
>> -       }
>> -       return NULL;
>> +        for (i = 0; devs[i]; i++)
>> +                namespace_pmem_release(devs[i]);
>> +        kfree(devs);
>> +        return NULL;
>>   }
>>