]> git.karo-electronics.de Git - linux-beck.git/commit
PCI: Use hotplug-safe pci_get_domain_bus_and_slot()
authorJiang Liu <liuj97@gmail.com>
Tue, 28 Aug 2012 15:43:57 +0000 (23:43 +0800)
committerBjorn Helgaas <bhelgaas@google.com>
Wed, 12 Sep 2012 20:14:30 +0000 (14:14 -0600)
commit433efd2247b0cbf5e7e86275e1f21281d3b99047
treeb3c2f3fba564b48bb088afed6e722815ceb599c4
parenta9d18b37e408b10854e15a918849194a4e089001
PCI: 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>
drivers/pci/iov.c