diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 027322a..f2cd279 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -52,7 +52,7 @@
 
 	switch(mode) {
 	case PM_DISK_PLATFORM:
-		kernel_power_off_prepare();
+		kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
 		error = pm_ops->enter(PM_SUSPEND_DISK);
 		break;
 	case PM_DISK_SHUTDOWN:
@@ -119,13 +119,6 @@
 		goto thaw;
 	}
 
-	if (pm_disk_mode == PM_DISK_PLATFORM) {
-		if (pm_ops && pm_ops->prepare) {
-			if ((error = pm_ops->prepare(PM_SUSPEND_DISK)))
-				goto thaw;
-		}
-	}
-
 	/* Free memory before shutting down devices. */
 	free_some_memory();
 	return 0;
diff --git a/kernel/sys.c b/kernel/sys.c
index eecf845..c3b1874 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -427,23 +427,25 @@
 }
 EXPORT_SYMBOL_GPL(kernel_kexec);
 
+void kernel_shutdown_prepare(enum system_states state)
+{
+	notifier_call_chain(&reboot_notifier_list,
+		(state == SYSTEM_HALT)?SYS_HALT:SYS_POWER_OFF, NULL);
+	system_state = state;
+	device_shutdown();
+}
 /**
  *	kernel_halt - halt the system
  *
  *	Shutdown everything and perform a clean system halt.
  */
-void kernel_halt_prepare(void)
-{
-	notifier_call_chain(&reboot_notifier_list, SYS_HALT, NULL);
-	system_state = SYSTEM_HALT;
-	device_shutdown();
-}
 void kernel_halt(void)
 {
-	kernel_halt_prepare();
+	kernel_shutdown_prepare(SYSTEM_HALT);
 	printk(KERN_EMERG "System halted.\n");
 	machine_halt();
 }
+
 EXPORT_SYMBOL_GPL(kernel_halt);
 
 /**
@@ -451,20 +453,13 @@
  *
  *	Shutdown everything and perform a clean system power_off.
  */
-void kernel_power_off_prepare(void)
-{
-	notifier_call_chain(&reboot_notifier_list, SYS_POWER_OFF, NULL);
-	system_state = SYSTEM_POWER_OFF;
-	device_shutdown();
-}
 void kernel_power_off(void)
 {
-	kernel_power_off_prepare();
+	kernel_shutdown_prepare(SYSTEM_POWER_OFF);
 	printk(KERN_EMERG "Power down.\n");
 	machine_power_off();
 }
 EXPORT_SYMBOL_GPL(kernel_power_off);
-
 /*
  * Reboot system call: for obvious reasons only root may call it,
  * and even root needs to set up some magic numbers in the registers