From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Sun, 26 Jan 2014 02:31:10 +0000 (+0100)
Subject: 	* grub-core/term/at_keyboard.c: Tolerate missing keyboard.
X-Git-Tag: 2.02-beta3~675
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7f64fb590cd80517e1381693a16d7cf2486fa808;p=thirdparty%2Fgrub.git

	* grub-core/term/at_keyboard.c: Tolerate missing keyboard.
---

diff --git a/ChangeLog b/ChangeLog
index bbec1e70b..d37d4a6fc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2014-01-26  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/term/at_keyboard.c: Tolerate missing keyboard.
+
 2014-01-26  Mike Gilbert <floppym@gentoo.org>
 
 	grub-install: support for partitioned partx loop devices.
diff --git a/grub-core/term/at_keyboard.c b/grub-core/term/at_keyboard.c
index f5071ce69..b4257e84a 100644
--- a/grub-core/term/at_keyboard.c
+++ b/grub-core/term/at_keyboard.c
@@ -396,6 +396,9 @@ fetch_key (int *is_break)
   if (! KEYBOARD_ISREADY (grub_inb (KEYBOARD_REG_STATUS)))
     return -1;
   at_key = grub_inb (KEYBOARD_REG_DATA);
+  /* May happen if no keyboard is connected. Just ignore this.  */
+  if (at_key == 0xff)
+    return -1;
   if (at_key == 0xe0)
     {
       e0_received = 1;