hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced

[net-next-2.6.git] / drivers / hwmon / asus_atk0110.c

diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index 16c420240724ee72ac96933fc0953f9a12c5e9c0..653db1bda9348ebaa62d8f17f93c46a4b8cdadda 100644 (file)
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -1411,6 +1411,13 @@ static int __init atk0110_init(void)
 {
        int ret;
 
+       /* Make sure it's safe to access the device through ACPI */
+       if (!acpi_resources_are_enforced()) {
+               pr_err("atk: Resources not safely usable due to "
+                      "acpi_enforce_resources kernel parameter\n");
+               return -EBUSY;
+       }
+
        ret = acpi_bus_register_driver(&atk_driver);
        if (ret)
                pr_info("atk: acpi_bus_register_driver failed: %d\n", ret);