Re: Re: [PATCH net v4] nfc: ... device_is_registered() is data race-able

[Lin Ma]

Hello there,

> 
> That is what proper reference counting is supposed to be for.  Perhaps
> you are running into a driver subsystem that is not doing that well, or
> at all?
> 
> Try adding the needed references and the use-after-free should almost be
> impossible to happen.
> 

That's true, if all the relevant resources are managed properly by the reference
count, everything will be easier.

> thanks,
> 
> greg k-h

Thanks
Lin Ma