[PATCH] nouveau, ACPI: fix regression caused by b072e53

[Maarten Lankhorst]

op 19-02-14 05:53, Jiang Liu schreef:
> On some platforms, ACPI _DSM method (nouveau_op_dsm_muid, function 0)
> has special requirements on the fourth parameter, which is different
> from ACPI specifications. So revert to the private implementation
> to check availability of _DSM functions instead of using common
> acpi_check_dsm() interface.
>
> Signed-off-by: Jiang Liu <jiang.liu at linux.intel.com>
> ---
> Hi Maarten,
> 	Thanks for bisecting. Could you please help to verify whether
> this patch fixes the regression?
>
Tested-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>

I was wrong about the operator precedence, seems correct after all. :-)