ata-acpi: don't call _GTF for disabled drive
I got below log after a S3 resume in a ASUS A6VC laptop. The system has only one IDE drive. It appears there is no reason calling _GTF for disabled drive. ACPI Error (dsopcode-0483): Attempt to CreateField of length zero [20070126] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.IDE0.RATA] (Node df822a7c), AE_AML_OPERAND_VALUE ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.IDE0.CHN1.DRV0._GTF] (Node df822bd0), AE_AML_OPERAND_VALUE ata2.00: _GTF evaluation failed (AE 0x3006) ACPI Error (dsopcode-0483): Attempt to CreateField of length zero [20070126] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.IDE0.RATA] (Node df822a7c), AE_AML_OPERAND_VALUE ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.IDE0.CHN1.DRV1._GTF] (Node df822b94), AE_AML_OPERAND_VALUE ata2.01: _GTF evaluation failed (AE 0x3006) Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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