ACPICA: Major update for acpi_get_object_info external interface

Completed a major update for the acpi_get_object_info external interface.
Changes include:
 - Support for variable, unlimited length HID, UID, and CID strings
 - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.)
 - Call the _SxW power methods on behalf of a device object
 - Determine if a device is a PCI root bridge
 - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO.
These changes will require an update to all callers of this interface.
See the ACPICA Programmer Reference for details.

Also, update all invocations of acpi_get_object_info interface

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 7 deletions

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 9a62224cc278..80eacbe157e2 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -481,26 +481,23 @@ static acpi_status is_memory_device(acpi_handle handle)
 {
         char *hardware_id;
         acpi_status status;
-        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
         struct acpi_device_info *info;
 
-
-        status = acpi_get_object_info(handle, &buffer);
+        status = acpi_get_object_info(handle, &info);
         if (ACPI_FAILURE(status))
                 return status;
 
-        info = buffer.pointer;
         if (!(info->valid & ACPI_VALID_HID)) {
-                kfree(buffer.pointer);
+                kfree(info);
                 return AE_ERROR;
         }
 
-        hardware_id = info->hardware_id.value;
+        hardware_id = info->hardware_id.string;
         if ((hardware_id == NULL) ||
             (strcmp(hardware_id, ACPI_MEMORY_DEVICE_HID)))
                 status = AE_ERROR;
 
-        kfree(buffer.pointer);
+        kfree(info);
         return status;
 }