Re: [PATCH 14/20] ethernet: ucc_geth: don't statically allocate eight ucc_geth_info

[Rasmus Villemoes]

On 08/12/2020 16.13, Christophe Leroy wrote:
> 
> 
> Le 05/12/2020 à 20:17, Rasmus Villemoes a écrit :

>> @@ -3714,25 +3712,23 @@ static int ucc_geth_probe(struct
>> platform_device* ofdev)
>>       if ((ucc_num < 0) || (ucc_num > 7))
>>           return -ENODEV;
>>   -    ug_info = &ugeth_info[ucc_num];
>> -    if (ug_info == NULL) {
>> -        if (netif_msg_probe(&debug))
>> -            pr_err("[%d] Missing additional data!\n", ucc_num);
>> -        return -ENODEV;
>> -    }
>> +    ug_info = kmalloc(sizeof(*ug_info), GFP_KERNEL);
> 
> Could we use dev_kmalloc() instead, to avoid the freeing on the wait out
> and the err_free_info: path ?

Perhaps, but I don't think mixing ordinary kmalloc() with devm_ versions
in the same driver is a good idea - IIRC there are at least some rules
to obey if one does that, but I don't remember and can't find what they are.

Rasmus