[src/trunk]: src/sys/dev/wsfb if the cursor row passed in a device property d...

[macallan <macallan%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e93984f651aa
branches:  trunk
changeset: 772302:e93984f651aa
user:      macallan <macallan%NetBSD.org@localhost>
date:      Wed Dec 28 18:37:58 2011 +0000

description:
if the cursor row passed in a device property doesn't fit on the screen just
ignore it and clear the screen

diffstat:

 sys/dev/wsfb/genfb.c |  9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diffs (30 lines):

diff -r 8afbf19a51e1 -r e93984f651aa sys/dev/wsfb/genfb.c
--- a/sys/dev/wsfb/genfb.c      Wed Dec 28 18:29:48 2011 +0000
+++ b/sys/dev/wsfb/genfb.c      Wed Dec 28 18:37:58 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: genfb.c,v 1.43 2011/12/22 04:53:43 macallan Exp $ */
+/*     $NetBSD: genfb.c,v 1.44 2011/12/28 18:37:58 macallan Exp $ */
 
 /*-
  * Copyright (c) 2007 Michael Lorenz
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.43 2011/12/22 04:53:43 macallan Exp $");
+__KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.44 2011/12/28 18:37:58 macallan Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -267,6 +267,11 @@
        sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
        sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
 
+       if (crow >= ri->ri_rows) {
+               crow = 0;
+               sc->sc_want_clear = 1;
+       }
+
        if (console)
                wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, crow,
                    defattr);