[PATCH] memory hotadd fixes: avoid registering res twice
[powerpc.git] / drivers / acpi / acpi_memhotplug.c
index e9175ea..b0d4b14 100644 (file)
@@ -129,11 +129,15 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
        struct acpi_memory_info *info, *n;
 
 
+       if (!list_empty(&mem_device->res_list))
+               return 0;
+
        status = acpi_walk_resources(mem_device->device->handle, METHOD_NAME__CRS,
                                     acpi_memory_get_resource, mem_device);
        if (ACPI_FAILURE(status)) {
                list_for_each_entry_safe(info, n, &mem_device->res_list, list)
                        kfree(info);
+               INIT_LIST_HEAD(&mem_device->res_list);
                return -EINVAL;
        }