Date: Fri, 17 Oct 2014 13:55:46 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r273219 - head/sys/dev/vt Message-ID: <201410171355.s9HDtkUV062231@svn.freebsd.org>
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Author: emaste Date: Fri Oct 17 13:55:45 2014 New Revision: 273219 URL: https://svnweb.freebsd.org/changeset/base/273219 Log: 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 Modified: head/sys/dev/vt/vt_core.c Modified: head/sys/dev/vt/vt_core.c ============================================================================== --- head/sys/dev/vt/vt_core.c Fri Oct 17 13:50:37 2014 (r273218) +++ head/sys/dev/vt/vt_core.c Fri Oct 17 13:55:45 2014 (r273219) @@ -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];
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