diff options
| author | Len Brown <len.brown@intel.com> | 2009-10-15 00:45:37 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-10-15 00:45:37 -0400 |
| commit | f63a904891de9da7828b3eb6c99c45a26ec5b475 (patch) | |
| tree | ca48570d54eb2038140e9540099e09293bbb7b1a | |
| parent | a3ccf63ee643ef243cbf8918da8b3f9238f10029 (diff) | |
| parent | 497fb54f578efd2b479727bc88d5ef942c0a1e2d (diff) | |
Merge branch 'bugzilla-14129' into release
| -rw-r--r-- | drivers/acpi/pci_root.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 31122214e0ec..1af808171d46 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -389,6 +389,17 @@ struct pci_dev *acpi_get_pci_dev(acpi_handle handle) pbus = pdev->subordinate; pci_dev_put(pdev); + + /* + * This function may be called for a non-PCI device that has a + * PCI parent (eg. a disk under a PCI SATA controller). In that + * case pdev->subordinate will be NULL for the parent. + */ + if (!pbus) { + dev_dbg(&pdev->dev, "Not a PCI-to-PCI bridge\n"); + pdev = NULL; + break; + } } out: list_for_each_entry_safe(node, tmp, &device_list, node) |