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authorTakashi Iwai <tiwai@suse.de>2009-11-14 14:38:28 +0100
committerTakashi Iwai <tiwai@suse.de>2009-11-14 14:38:28 +0100
commit0c3c35e148dbc03106038dd25816fb9f3a084d86 (patch)
tree8b8cc6a027353a0f242f61362b35b0942da61b83 /drivers/acpi/pci_root.c
parent50d40f187f9182ee8caa1b83f80a0e11e2226baa (diff)
parent5e08fe570c2dbabb5015c37049eb9a451e55c890 (diff)
downloadblackbird-op-linux-0c3c35e148dbc03106038dd25816fb9f3a084d86.tar.gz
blackbird-op-linux-0c3c35e148dbc03106038dd25816fb9f3a084d86.zip
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'drivers/acpi/pci_root.c')
-rw-r--r--drivers/acpi/pci_root.c11
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)
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