[ACPI] PCI interrupt link suspend/resume - revert to 2.6.12 behaviour
This patch disables the PCI Interrupt Link refernece counts, which should not co-exist with the 2.6.12 irq_router.resume method or else a double acpi_pci_link_set() could result on resume. Signed-off-by: David Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -692,7 +692,18 @@ acpi_pci_link_free_irq(acpi_handle handle)
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return_VALUE(-1);
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}
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#ifdef FUTURE_USE
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/*
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* The Link reference count allows us to _DISable an unused link
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* and suspend time, and set it again on resume.
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* However, 2.6.12 still has irq_router.resume
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* which blindly restores the link state.
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* So we disable the reference count method
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* to prevent duplicate acpi_pci_link_set()
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* which would harm some systems
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*/
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link->refcnt --;
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#endif
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"Link %s is dereferenced\n", acpi_device_bid(link->device)));
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