Commit 654b75e0 authored Jun 26, 2009 by Yu Zhao Committed by Jesse Barnes Jun 29, 2009

PCI: check if bus has a proper bridge device before triggering SBR



For devices attached to the root bus, we can't trigger Secondary Bus
Reset because there is no bridge device associated with the bus. So
need to check bus->self again NULL first before using it.

Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

parent 977badb2

drivers/pci/pci.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2171,7 +2171,7 @@ static int pci_parent_bus_reset(struct pci_dev *dev, int probe)
		u16 ctrl;
		struct pci_dev *pdev;

		if (dev->subordinate)
		if (pci_is_root_bus(dev->bus) \|\| dev->subordinate \|\| !dev->bus->self)
		return -ENOTTY;

		list_for_each_entry(pdev, &dev->bus->devices, bus_list)