Re: [PATCH v2 0/1] Open questions

[Marc Kleine-Budde]

On 03/13/2018 06:42 PM, Dr. Philipp Tomsich wrote:
> 
>> On 13 Mar 2018, at 18:40, Jakob Unterwurzacher
>> <jakob.unterwurzacher@xxxxxxxxxxxxxxxxxxxxx
>> <mailto:jakob.unterwurzacher@xxxxxxxxxxxxxxxxxxxxx>> wrote:
>>
>> >> + ÂÂÂ/* get the urb context */
>> >> + ÂÂÂif (WARN_ON(!context))
>> >> + ÂÂÂÂÂÂÂreturn;
>> >
>> > Can this happen?
>>
>> Not unless there is a bug in the code. But we want to get a message
>> before dereferencing a pointer.
> 
> Why not use BUG_ON(!context)?

As this will halt the whole system.

Marc

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