[PATCH] memory hotadd fixes: avoid registering res twice

[linux-2.6-omap-h63xx.git] / drivers / acpi / acpi_memhotplug.c

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index e9175eaeb1df825b83fac179d2858d3c215ef40c..b0d4b147b19eab7155452c818e5947716bf4b0bd 100644 (file)
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -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;
        }