acpi sleep: demote sleep proc file creation.

- Make acpi_sleep_proc_init() a late_initcall(), and not called from 
  acpi_sleep_init(). This guarantees that the acpi proc hierarchy is at 
  least there when we create the dang file.

drivers/acpi/sleep/main.c

@@ -270,8 +270,6 @@ static int __init acpi_sleep_init(void)
 	}
 	printk(")\n");
 
-	acpi_sleep_proc_init();
-
 	return_VALUE(0);
 }
 

drivers/acpi/sleep/proc.c

@@ -67,7 +67,7 @@ acpi_system_write_sleep (
 		goto Done;
 
 	if (!sleep_states[state]) 
-		return_VALUE(-ENODEV);
+		goto Done;
 
 #ifdef CONFIG_SOFTWARE_SUSPEND
 	if (state == 4) {
@@ -375,7 +375,7 @@ static struct file_operations acpi_system_alarm_fops = {
 };
 
 
-int acpi_sleep_proc_init(void)
+static int acpi_sleep_proc_init(void)
 {
 	struct proc_dir_entry	*entry = NULL;
 
@@ -392,3 +392,5 @@ int acpi_sleep_proc_init(void)
 		entry->proc_fops = &acpi_system_alarm_fops;
 	return 0;
 }
+
+late_initcall(acpi_sleep_proc_init);

drivers/acpi/sleep/sleep.h

@@ -3,11 +3,3 @@ extern u8 sleep_states[];
 
 extern acpi_status acpi_suspend (u32 state);
 
-#ifdef CONFIG_PROC_FS
-extern int acpi_sleep_proc_init(void);
-#else
-static inline int acpi_sleep_proc_init(void)
-{
-	return 0;
-}
-#endif