[patch] fix boot with acpi=off

[Pavel Machek <pavel@ucw.cz>]

With acpi=off and acpi_ac/battery compiled into kernel, acpi breaks
boot. This fixes it.

Signed-off-by: Pavel Machek <pavel@suse.cz>

---
commit 30b8ecda788b096fbd7088808f9af65c41c3a83d
tree 3c28088018932f9ceb18bcf980507474d4a50c4e
parent 05f70501240c6ad5f852f13c187ee55579ad7bb8
author <pavel@amd.ucw.cz> Sat, 08 Jul 2006 14:43:13 +0200
committer <pavel@amd.ucw.cz> Sat, 08 Jul 2006 14:43:13 +0200

 drivers/acpi/ac.c      |    2 ++
 drivers/acpi/battery.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 24ccf81..432b6b7 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 2ce9b35..5af1f64 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -764,6 +764,9 @@ 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;

-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html