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Commit 780dbcd0 authored by Zhang, Yang Z's avatar Zhang, Yang Z Committed by Konrad Rzeszutek Wilk
Browse files

xen/pci: Check for PCI bridge before using it. 



Some SR-IOV devices may use more than one bus number, but there is no real bridges
because that have internal routing mechanism. So need to check whether the bridge is
existing before using it.

Signed-off-by: default avatarYang Zhang <yang.z.zhang@Intel.com>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 5e152e6c

drivers/xen/pci.c

+1 −1
Original line number Diff line number Diff line
@@ -59,7 +59,7 @@ static int xen_add_device(struct device *dev) 


#ifdef CONFIG_ACPI

		handle = DEVICE_ACPI_HANDLE(&pci_dev->dev);

		if (!handle)

		if (!handle && pci_dev->bus->bridge)

			handle = DEVICE_ACPI_HANDLE(pci_dev->bus->bridge);

#ifdef CONFIG_PCI_IOV

		if (!handle && pci_dev->is_virtfn)