Rethinking about this: driver_registered is a bit too general variable?
Is this OK, now?
Subject: Exit ACPI processor module gracefully if acpi is disabled
Signed-off-by: Thomas Renninger <trenn@xxxxxxx>
drivers/acpi/processor_core.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletion(-)
Index: linux-2.6.16/drivers/acpi/processor_core.c
===================================================================
--- linux-2.6.16.orig/drivers/acpi/processor_core.c
+++ linux-2.6.16/drivers/acpi/processor_core.c
@@ -906,6 +906,8 @@ void acpi_processor_uninstall_hotplug_no
* ACPI, but needs symbols from this driver
*/
+static int processor_driver_registered = 0;
+
static int __init acpi_processor_init(void)
{
int result = 0;
@@ -926,6 +928,8 @@ static int __init acpi_processor_init(vo
return_VALUE(0);
}
+ processor_driver_registered = 1;
+
acpi_processor_install_hotplug_notify();
acpi_thermal_cpufreq_init();
@@ -943,12 +947,13 @@ static void __exit acpi_processor_exit(v
acpi_thermal_cpufreq_exit();
+ if (processor_driver_registered){
acpi_processor_uninstall_hotplug_notify();
acpi_bus_unregister_driver(&acpi_processor_driver);
remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
-
+ }
return_VOID;
}
-
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