[PATCH] ps3: always make sure we're running on a PS3

[Arnd Bergmann]

On Thursday 22 February 2007, Geert Uytterhoeven wrote:
> Add missing checks to PS3 specific drivers ps3av and sys-manager to verify that
> we are actually running on a PS3 (pointed out by Arnd).
> 
> Correct existing checks in other subsystems/drivers to return -ENODEV instead
> of zero.
> 
> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven at sonycom.com>

Acked-by: Arnd Bergmann <arnd.bergmann at de.ibm.com>