| commit | 433efd2247b0cbf5e7e86275e1f21281d3b99047 | |
| author | Jiang Liu <liuj97@gmail.com> | |
| Tue, 28 Aug 2012 15:43:57 +0000 (28 23:43 +0800) | ||
| committer | Bjorn Helgaas <bhelgaas@google.com> | |
| Wed, 12 Sep 2012 20:14:30 +0000 (12 14:14 -0600) | ||
| tree | b3c2f3fba564b48bb088afed6e722815ceb599c4 | treesnapshot (tar.gz zip) |
| parent | a9d18b37e408b10854e15a918849194a4e089001 | commitdiff |
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>
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 | diffblobblamehistory |