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| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2009-09-21 13:35:04 -0600 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-09-25 14:25:29 -0400 |
| commit | 78b8e141f8458ba0b8ac53c45bc327112c53887e (patch) | |
| tree | cd8e3264d85f7bf57946697384a9fead97b84f44 | |
| parent | e3b87f8a9d5a61f6367c66d1bb0a4e19d251194d (diff) | |
| download | linux-3.10-78b8e141f8458ba0b8ac53c45bc327112c53887e.tar.gz linux-3.10-78b8e141f8458ba0b8ac53c45bc327112c53887e.tar.bz2 linux-3.10-78b8e141f8458ba0b8ac53c45bc327112c53887e.zip | |
ACPI: fix synthetic HID for \_SB_
This makes \_SB_ show up as /sys/devices/LNXSYSTM:00/LNXSYBUS:00
rather than "device:00". This has been broken for a loooong time
(at least since 2.6.13) because device->parent is an acpi_device
pointer, not a handle.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/acpi/scan.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 2c4cac576a7..e9227ea2cb2 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1100,6 +1100,12 @@ static void acpi_device_set_id(struct acpi_device *device) if (ACPI_IS_ROOT_DEVICE(device)) { hid = ACPI_SYSTEM_HID; break; + } else if (ACPI_IS_ROOT_DEVICE(device->parent)) { + /* \_SB_, the only root-level namespace device */ + hid = ACPI_BUS_HID; + strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); + strcpy(device->pnp.device_class, ACPI_BUS_CLASS); + break; } status = acpi_get_object_info(device->handle, &info); @@ -1149,18 +1155,6 @@ static void acpi_device_set_id(struct acpi_device *device) break; } - /* - * \_SB - * ---- - * Fix for the system root bus device -- the only root-level device. - */ - if (((acpi_handle)device->parent == ACPI_ROOT_OBJECT) && - (device->device_type == ACPI_BUS_TYPE_DEVICE)) { - hid = ACPI_BUS_HID; - strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); - strcpy(device->pnp.device_class, ACPI_BUS_CLASS); - } - if (hid) { device->pnp.hardware_id = ACPI_ALLOCATE_ZEROED(strlen (hid) + 1); if (device->pnp.hardware_id) { |