PCI: use pci_is_root_bus() in acpi_find_root_bridge_handle()
Use pci_is_root_bus() in acpi_find_root_bridge_handle() to check if the pci bus is root, for code consistency. Reviewed-by: Alex Chiang <achiang@hp.com> Reviewed-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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@ -15,7 +15,7 @@ static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
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{
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struct pci_bus *pbus = pdev->bus;
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/* Find a PCI root bus */
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while (pbus->parent)
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while (!pci_is_root_bus(pbus))
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pbus = pbus->parent;
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return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
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pbus->number);
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