Re: [PATCH v4 3/9] brcmfmac: firmware: Do not crash on a NULL board_type

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On 01/02/2022 01.49, Kalle Valo wrote:
> Andy Shevchenko <andy.shevchenko@xxxxxxxxx> writes:
> 
>> On Mon, Jan 31, 2022 at 6:07 PM Hector Martin <marcan@xxxxxxxxx> wrote:
>>>
>>> This unbreaks support for USB devices, which do not have a board_type
>>> to create an alt_path out of and thus were running into a NULL
>>> dereference.
>>
>> ...
>>
>>> @@ -599,6 +599,9 @@ static char *brcm_alt_fw_path(const char *path,
>>> const char *board_type)
>>>         char alt_path[BRCMF_FW_NAME_LEN];
>>>         char suffix[5];
>>>
>>> +       if (!board_type)
>>> +               return NULL;
>>
>> I still think it's better to have both callers do the same thing.
>>
>> Now it will be the double check in one case,
> 
> I already applied a similar patch:
> 
> https://git.kernel.org/wireless/wireless/c/665408f4c3a5
> 

Feel free to drop this one from the series then, if everything else
looks good.


-- 
Hector Martin (marcan@xxxxxxxxx)
Public Key: https://mrcn.st/pub



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