ACPI: fix boot with acpi=off

Fix acpi_ac/battery boot with acpi=off

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>

2 files changed, 5 insertions, 0 deletions

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 96309b9660da..11abc7bf777e 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -285,6 +285,8 @@ static int __init acpi_ac_init(void)
 {
         int result;
 
+        if (acpi_disabled)
+                return -ENODEV;
 
         acpi_ac_dir = acpi_lock_ac_dir();
         if (!acpi_ac_dir)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 6e5221707d97..9810e2a55d0a 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -757,6 +757,9 @@ static int __init acpi_battery_init(void)
 {
         int result;
 
+        if (acpi_disabled)
+                return -ENODEV;
+
         acpi_battery_dir = acpi_lock_battery_dir();
         if (!acpi_battery_dir)
                 return -ENODEV;