Re: acpi=off & /proc entries

["Zdeněk OGAR Skalák" <skalak-Bh/+Xfn7orxQjibfaplwYw@public.gmane.org>]

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Hi,

	here is small simple patch :-) It's against acpi-20030512-2.4.21-rc2.

	It prevents ACPI modules (button, ...) to register itself & create /proc
entries, when acpi is disabled through acpi=off. 

	Because bus.c uses acpi_disabled variable set by acpi=off, it doesn't register
/proc/acpi directory & module later registers (in his __init) it's /proc entry
just in /proc (/proc/button, ...).

	This simply returns -ENODEV if acpi_disabled & when module tries to register
via acpi_bus_register_driver (in bus.c) & as a consequence, module removes his
/proc entry :-)

	Bye
		Zdenek OGAR Skalak
-- 
Ing. Zdeněk OGAR Skalák
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diff -r -c old/drivers/acpi/bus.c new/drivers/acpi/bus.c
*** old/drivers/acpi/bus.c	Fri May 16 09:55:19 2003
--- new/drivers/acpi/bus.c	Fri May 16 09:58:01 2003
***************
*** 1249,1254 ****
--- 1249,1257 ----
  	if (!driver)
  		return_VALUE(-EINVAL);
  
+ 	if (acpi_disabled)
+ 		return_VALUE(-ENODEV);
+ 
  	down(&acpi_bus_drivers_lock);
  	list_add_tail(&driver->node, &acpi_bus_drivers);
  	up(&acpi_bus_drivers_lock);