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| author | emaste <emaste@FreeBSD.org> | 2014-10-17 13:55:45 +0000 |
|---|---|---|
| committer | emaste <emaste@FreeBSD.org> | 2014-10-17 13:55:45 +0000 |
| commit | 7b498b51a18e4cf9fb06762ffa9856dd8a3b60aa (patch) | |
| tree | a37161cbe159a72bcdc75065427f106a473f3b1f /sys/dev/vt | |
| parent | 24f7fd80fe4e4d0ae3de8e8e873637b2ec4ec386 (diff) | |
| download | FreeBSD-src-7b498b51a18e4cf9fb06762ffa9856dd8a3b60aa.zip FreeBSD-src-7b498b51a18e4cf9fb06762ffa9856dd8a3b60aa.tar.gz | |
Do nothing in vt_upgrade if there is no vt driver
Previously, if no drivers attached at boot we would panic with
"vtbuf_fill_locked begin.tp_row 0 must be < screen height 0".
PR: 192248
Reviewed by: ray
MFC after: 3 days
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D954
Diffstat (limited to 'sys/dev/vt')
| -rw-r--r-- | sys/dev/vt/vt_core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/vt/vt_core.c b/sys/dev/vt/vt_core.c index 487a7ce..854633e 100644 --- a/sys/dev/vt/vt_core.c +++ b/sys/dev/vt/vt_core.c @@ -2498,6 +2498,8 @@ vt_upgrade(struct vt_device *vd) if (!vty_enabled(VTY_VT)) return; + if (main_vd->vd_driver == NULL) + return; for (i = 0; i < VT_MAXWINDOWS; i++) { vw = vd->vd_windows[i]; |
