I've taken into account Dmitry's comments (thanks Dmitry!) and generated 
a new patch.

Thanks,

P.
Jesse Barnes wrote:

>On Friday, January 21, 2005 8:35 am, Vojtech Pavlik wrote:
>  
>
>>No. But vacant ports usually return 0xff. The problem here is that 0xff
>>is a valid value for the status register, too. Fortunately this patch
>>checks for 0xff only after the timeout failed.
>>    
>>
>
>On PCs you'll get all 1s, but on some ia64 platforms and others, you'll take a 
>hard machine check exception if you try to access non-existent memory (mmio, 
>port space, or otherwise).
>
>Jesse
>-
>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
>the body of a message to majordomo@vger.kernel.org
>More majordomo info at  http://vger.kernel.org/majordomo-info.html
>Please read the FAQ at  http://www.tux.org/lkml/
>
>  
>