[PATCH] -mm swsusp: make sure we do not return to userspace where image is on disk

From: Pavel Machek <pavel@ucw.cz>

When image is already on the disk, returning back to user is dangerous.
Signed-off-by: Andrew Morton <akpm@osdl.org>

kernel/power/disk.c

@@ -63,8 +63,10 @@ static int power_down(u32 mode)
 		break;
 	}
 	machine_halt();
-	device_power_up();
-	local_irq_restore(flags);
+	/* Valid image is on the disk, if we continue we risk serious data corruption
+	   after resume. */
+	printk("Please power me down manually\n");
+	while(1);
 	return 0;
 }