Re: [PATCH][RFC]: Clean up resource allocation in i8042 driver

[Jesse Barnes]

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
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