В сообщении от 24 августа 2010 17:41:57 автор Marek Vasut написал:
> Dne Út 24. srpna 2010 16:21:01 Vasily Khoruzhick napsal(a):
> > В сообщении от 24 августа 2010 17:01:12 автор Marek Vasut написал:
> > > pr_err() and don't probe the device for which you couldn't request
> > > GPIO.
> > 
> > Well, handling those errors in machine init functions doesn't make sense.
> > PDA is not usable without basic hardware.
> 
> You can use PDA without LCD for example (there are such people, trust me).
> So, this comment really isn't too valid. You can also use PDA without MMC
> support, you still have onboard flash, etc. etc.

But error handling here just increases code size, and gpio_request in init 
function should always succeed. It means something's going really wrong 
(kernel bug or misconfiguration) if gpio_request fails. Btw, Ben suggested to 
use WARN_ON in machine init, look through init functions of qt2410, n30, 
rx1950, vr1000, etc.

Regards
Vasily