Re: [PATCH 1/4] of/device: Add a way to probe drivers by match data

From: Matthias Brugger
Date: Fri Nov 09 2018 - 05:29:41 EST




On 08/11/2018 18:58, Stephen Boyd wrote:
> Quoting Matthias Brugger (2018-11-08 00:29:46)
>> On 06/11/2018 19:36, Stephen Boyd wrote:
>>> +int platform_driver_probe_by_of_match_data(struct platform_device *pdev)
>>> +{
>>> + int (*probe_func)(struct platform_device *pdev);
>>> +
>>> + probe_func = of_device_get_match_data(&pdev->dev);
>>
>> Shouldn't we check if probe_func is not NULL?
>
> Is the oops from the NULL pointer deref insufficient?
>

Do you think we should crash the machine if someone uses the call wrongly? Or
should we provide the possibility to error out on the caller side?

Regards,
Matthias