From: H. Peter Anvin <hpa@zytor.com>
Date: Tue, 10 Jun 2008 22:40:11 +0000 (-0700)
Subject: ldlinux: search_dos_dir returns attributes in DL
X-Git-Tag: syslinux-3.70-pre15^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bed21540a0481b8560d8729481e69b379edda31e;p=platform%2Fupstream%2Fsyslinux.git

ldlinux: search_dos_dir returns attributes in DL

search_dos_dir returns attributes in DL, so we shouldn't push/pop DX
around this function!
---

diff --git a/core/ldlinux.asm b/core/ldlinux.asm
index 54dc8fa..5318c47 100644
--- a/core/ldlinux.asm
+++ b/core/ldlinux.asm
@@ -956,9 +956,11 @@ allocate_file:
 ;		ZF clear
 ;		SI	= file pointer
 ;		EAX	= file length (MAY BE ZERO!)
-;		DL	= file attributes
+;		DL	= file attribute
+;               DH	= clobbered
 ;	     If unsuccessful
 ;		ZF set
+;		EAX, SI, DX clobbered
 ;
 
 search_dos_dir:
@@ -967,7 +969,6 @@ search_dos_dir:
 		jnz .alloc_failure
 
 		push cx
-		push dx
 		push gs
 		push es
 		push ds
@@ -1125,7 +1126,6 @@ search_dos_dir:
 .failure:
 		pop es
 		pop gs
-		pop dx
 		pop cx
 .alloc_failure:
 		pop bx
@@ -1153,7 +1153,6 @@ search_dos_dir:
 
 		pop es
 		pop gs
-		pop dx
 		pop cx
 		pop bx
 		ret