[Xen-devel] [PATCH 4/7] vgabios: Report mode not supported getting mode informations

[Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>]

If you try to get mode information for an unsupported mode
interrupt should return error but not that the function is not
supported.

Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
---
 tools/firmware/vgabios/vbe.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/firmware/vgabios/vbe.c b/tools/firmware/vgabios/vbe.c
index 35d9866..fff314e 100644
--- a/tools/firmware/vgabios/vbe.c
+++ b/tools/firmware/vgabios/vbe.c
@@ -911,7 +911,8 @@ Bit16u *AX;Bit16u ES;Bit16u DI;
 void vbe_biosfn_return_mode_information(AX, CX, ES, DI)
 Bit16u *AX;Bit16u CX; Bit16u ES;Bit16u DI;
 {
-        Bit16u            result=0x0100;
+        // error by default is 0x014f which means supported but error
+        Bit16u                 result=0x014f;
         Bit16u            ss=get_SS();
         ModeInfoBlock     info;
         ModeInfoListItem  *cur_info;
@@ -955,7 +956,6 @@ Bit16u *AX;Bit16u CX; Bit16u ES;Bit16u DI;
 #ifdef DEBUG
                 printf("VBE *NOT* found mode %x\n",CX);
 #endif
-                result = 0x100;
         }
         
         if (result == 0x4f)
-- 
1.7.5.4


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