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authorIngo Molnar <mingo@elte.hu>2009-10-29 09:02:15 +0100
committerIngo Molnar <mingo@elte.hu>2009-10-29 09:02:20 +0100
commit9de09ace8d518141a4375e1d216ab64db4377799 (patch)
treeda8e7a77f4ea91eb3bb73fc6da72ecf8c99e1c16 /drivers/acpi/pci_root.c
parent1beee96bae0daf7f491356777c3080cc436950f5 (diff)
parent6d3f1e12f46a2f9a1bb7e7aa433df8dd31ce5647 (diff)
downloadop-kernel-dev-9de09ace8d518141a4375e1d216ab64db4377799.zip
op-kernel-dev-9de09ace8d518141a4375e1d216ab64db4377799.tar.gz
Merge branch 'tracing/urgent' into tracing/core
Merge reason: Pick up fixes and move base from -rc1 to -rc5. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 3112221..1af8081 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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