[PATCH] Avoid device suspend on reboot

My fairly ordinary x86 test box gets stuck during reboot on the
wait_for_completion() in ide_do_drive_cmd():

Signed-off-by: Linus Torvalds <[e-mail]>

kernel/sys.c

···
 {
 	notifier_call_chain(&reboot_notifier_list, SYS_RESTART, cmd);
 	system_state = SYSTEM_RESTART;
-	device_suspend(PMSG_FREEZE);
 	device_shutdown();
 	if (!cmd) {
 		printk(KERN_EMERG "Restarting system.\n");