=== modified file 'kern/device.c'
--- kern/device.c	2009-07-13 22:21:49 +0000
+++ kern/device.c	2009-12-10 12:26:22 +0000
@@ -109,6 +109,8 @@
 	  (void) grub_partition_iterate (dev->disk, iterate_partition);
 	  grub_device_close (dev);
 
+	  grub_errno = GRUB_ERR_NONE;
+
 	  p = ents;
 	  while (p != NULL)
 	    {