PCI: use pci_is_root_bus() in pci_find_upstream_pcie_bridge()
Use pci_is_root_bus() in pci_find_upstream_pcie_bridge() 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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@ -29,7 +29,7 @@ pci_find_upstream_pcie_bridge(struct pci_dev *pdev)
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if (pdev->is_pcie)
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return NULL;
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while (1) {
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if (!pdev->bus->parent)
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if (pci_is_root_bus(pdev->bus))
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break;
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pdev = pdev->bus->self;
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/* a p2p bridge */
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