http://bugzilla.kernel.org/show_bug.cgi?id=7576





------- Additional Comments From [EMAIL PROTECTED]  2007-03-06 12:05 -------
Since the ACPI Spec revision 3.0a the Return ASL operator definition
more exactly says, that "if no Arg object is specified, a Return(Zero)
is generated by the ASL compiler". The iASL compiler implements this
feature since the 20050309 release. The previous iASL releases were
generating no any return value in that case. That old AML code can not
be disassembled properly resulting in incorrect ASL expressions like

            If (LEqual (Local2, 0x00))
            {
                Return (Stall (0x0F))
            }

It looks like the original ASL code was the following:

            If (LEqual (Local2, 0x00))
            {
                Return ()
            }
            Stall (0x0F)


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