[PATCH] Remove suspend() calls from shutdown path

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

Hi Andrew !

This patch remove the calls to device_suspend() from the shutdown path
that were added sometime during 2.6.13-rc*. They aren't working properly
on a number of configs (I got reports from both ppc powerbook users and
x86 users) causing the system to not shutdown anymore.

I think it isn't the right approach at the moment anyway. We have
already a shutdown() callback for the drivers that actually care about
shutdown and the suspend() code isn't yet in a good enough shape to be
so much generalized. Also, the semantics of suspend and shutdown are
slightly different on a number of setups and the way this was patched in
provides little way for drivers to cleanly differenciate. It should have
been at least a different message.

For 2.6.13, I think we should revert to 2.6.12 behaviour and have a
working suspend back.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

Index: linux-work/kernel/sys.c
===================================================================
--- linux-work.orig/kernel/sys.c	2005-08-01 14:03:46.000000000 +0200
+++ linux-work/kernel/sys.c	2005-08-04 11:32:51.000000000 +0200
@@ -404,7 +404,6 @@
 {
 	notifier_call_chain(&reboot_notifier_list, SYS_HALT, NULL);
 	system_state = SYSTEM_HALT;
-	device_suspend(PMSG_SUSPEND);
 	device_shutdown();
 	printk(KERN_EMERG "System halted.\n");
 	machine_halt();
@@ -415,7 +414,6 @@
 {
 	notifier_call_chain(&reboot_notifier_list, SYS_POWER_OFF, NULL);
 	system_state = SYSTEM_POWER_OFF;
-	device_suspend(PMSG_SUSPEND);
 	device_shutdown();
 	printk(KERN_EMERG "Power down.\n");
 	machine_power_off();