Merge commit 'v2.6.32-rc5' into for-linus

1 files changed, 15 insertions, 15 deletions

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 55b5b90c2a44..1af808171d46 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -36,6 +36,8 @@
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
+#define PREFIX "ACPI: "
+
 #define _COMPONENT              ACPI_PCI_COMPONENT
 ACPI_MODULE_NAME("pci_root");
 #define ACPI_PCI_ROOT_CLASS             "pci_bridge"
@@ -61,20 +63,6 @@ static struct acpi_driver acpi_pci_root_driver = {
                 },
 };
 
-struct acpi_pci_root {
-        struct list_head node;
-        struct acpi_device *device;
-        struct pci_bus *bus;
-        u16 segment;
-        u8 bus_nr;
-
-        u32 osc_support_set;    /* _OSC state of support bits */
-        u32 osc_control_set;    /* _OSC state of control bits */
-        u32 osc_control_qry;    /* the latest _OSC query result */
-
-        u32 osc_queried:1;      /* has _OSC control been queried? */
-};
-
 static LIST_HEAD(acpi_pci_roots);
 
 static struct acpi_pci_driver *sub_driver;
@@ -317,7 +305,7 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
         return status;
 }
 
-static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
+struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
 {
         struct acpi_pci_root *root;
 
@@ -327,6 +315,7 @@ static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
         }
         return NULL;
 }
+EXPORT_SYMBOL_GPL(acpi_pci_find_root);
 
 struct acpi_handle_node {
         struct list_head node;
@@ -400,6 +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)