[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 91a20785108aa26b962fd4412afb51ae427476bb..3e67c34df9a593d6c93f7722037330f9eaff8460 100644 (file)
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -371,7 +371,8 @@ static const char *vgacon_startup(void)
        }
 
        /* 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 */