[PATCH] Do not require console control protocol.

[Johan Rydberg <jrydberg@night.trouble.net>]

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Hi,

I would like to have the following patch committed.  Some EFI
implementations do not provide a console control protocol instance,
and it is covered by neither EFI or UEFI specifications.

~j

2006-07-28  Johan Rydberg  <jrydberg@gnu.org>

        * kern/efi/efi.c (grub_efi_set_text_mode): Assume console already
        is in text mode if there is no console control protocol instance
        available.



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Index: kern/efi/efi.c
===================================================================
RCS file: /sources/grub/grub2/kern/efi/efi.c,v
retrieving revision 1.7
diff -u -r1.7 efi.c
--- kern/efi/efi.c	27 May 2006 21:09:25 -0000	1.7
+++ kern/efi/efi.c	27 Jul 2006 22:01:49 -0000
@@ -125,7 +125,9 @@
 
   c = grub_efi_locate_protocol (&console_control_guid, 0);
   if (! c)
-    return 0;
+    /* No console control protocol instance available, assume it is
+       already in text mode. */
+    return 1;
   
   if (c->get_mode (c, &mode, 0, 0) != GRUB_EFI_SUCCESS)
     return 0;