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PCI update for v3.18: 

Enumeration
     - Don't oops on virtual buses in acpi_pci_get_bridge_handle() (Yinghai Lu)
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Merge tag 'pci-v3.18-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fix from Bjorn Helgaas:
 "This fixes an oops when enabling SR-IOV VF devices.  The oops is a
  regression I added by configuring all devices during enumeration.

    - Don't oops on virtual buses in acpi_pci_get_bridge_handle() (Yinghai Lu)"

* tag 'pci-v3.18-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Don't oops on virtual buses in acpi_pci_get_bridge_handle()
This commit is contained in:
Linus Torvalds 2014-11-06 11:33:06 -08:00
parent 3d5a08639f 32f638fc11
commit ed78bb846e
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
include/linux/pci-acpi.h
View File

@ -41,8 +41,13 @@ static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
if (pci_is_root_bus(pbus))
dev = pbus->bridge;
else
else {
/* If pbus is a virtual bus, there is no bridge to it */
if (!pbus->self)
return NULL;
dev = &pbus->self->dev;
}
return ACPI_HANDLE(dev);
}