[PATCH] x86-64: ignore vgacon if hardware not present
Avoid trying to set up vgacon if there's no vga hardware present.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Alan <alan@lxorguk.ukuu.org.uk>
Acked-by: Ingo Molnar <mingo@elte.hu>
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 91a2078..3e67c34 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -371,7 +371,8 @@
}
/* VGA16 modes are not handled by VGACON */
- if ((ORIG_VIDEO_MODE == 0x0D) || /* 320x200/4 */
+ if ((ORIG_VIDEO_MODE == 0x00) || /* SCREEN_INFO not initialized */
+ (ORIG_VIDEO_MODE == 0x0D) || /* 320x200/4 */
(ORIG_VIDEO_MODE == 0x0E) || /* 640x200/4 */
(ORIG_VIDEO_MODE == 0x10) || /* 640x350/4 */
(ORIG_VIDEO_MODE == 0x12) || /* 640x480/4 */