tree 9638986e377a77820b1ad30c0a72d2120b3f6f7b
parent dbbe4649d683577de1063dbd9f6da7d4b8de2fed
author Zhao Yakui <yakui.zhao@intel.com> 1278992168 +0000
committer Len Brown <len.brown@intel.com> 1280197933 -0400

ACPI: Add the check of ADR flag in course of finding ACPI handle for PCI device

The _ADR object is used to provide OSPM with the address of one device on its
parent bus. In course of finding ACPI handle for the corresponding PCI device,
we will firstly evaluate the _ADR object and then compare the two addresses to
see whether it is the target ACPI device. But for one PCI device(0000:00:00.0)
under the PCI root bridge, the corresponding address will be constructed as
zero.In such case maybe the ACPI device without _ADR object will be misdetected
and then be used to create the relationship between PCI device and ACPI device.

https://bugzilla.kernel.org/show_bug.cgi?id=16422

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>