Jiang Liu f85567c89e
PCI/vga: Use hotplug-safe pci_get_domain_bus_and_slot() ...
Following code has a race window between pci_find_bus() and pci_get_slot()
if PCI hotplug operation happens between them which removes the pci_bus.
So use PCI hotplug safe interface pci_get_domain_bus_and_slot() instead,
which also reduces code complexity.
struct pci_bus *pci_bus = pci_find_bus(domain, busno);
struct pci_dev *pci_dev = pci_get_slot(pci_bus, devfn);
Signed-off-by: Jiang Liu <jiang.liu@huawei.com >
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com >
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