From: H. Peter Anvin <hpa@zytor.com>
Date: Wed, 14 Nov 2007 05:51:27 +0000 (-0800)
Subject: Fix boot sectors; cleanup_hardware must preserve registers
X-Git-Tag: syslinux-3.53-pre4^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=37cb48730c060adb253da5bc7c5f74ea06211aaa;p=profile%2Fivi%2Fsyslinux.git

Fix boot sectors; cleanup_hardware must preserve registers

cleanup_hardware has registers live across it when called from the
boot sector code; it must preserve all registers.
---

diff --git a/cleanup.inc b/cleanup.inc
index 45ef920..1025705 100644
--- a/cleanup.inc
+++ b/cleanup.inc
@@ -24,7 +24,7 @@
 ;	Can trash any registers.
 ;
 cleanup_hardware:
-
+		pushad
 ;
 ; Linux wants the floppy motor shut off before starting the kernel,
 ; at least bootsect.S seems to imply so.  If we don't load the floppy
@@ -50,4 +50,5 @@ cleanup_hardware:
 .no_vmware:
 %endif
 
+		popad
 		ret