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Avoid null pointer dereference so that boot -d works again.

This commit is contained in:
enami 2001-01-03 23:03:45 +00:00
parent 7eab063a4f
commit 62a4aefda9
1 changed files with 5 additions and 2 deletions
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7
sys/dev/wscons/wsdisplay.c
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@ -1,4 +1,4 @@
/* $NetBSD: wsdisplay.c,v 1.47 2001/01/03 23:00:24 enami Exp $ */
/* $NetBSD: wsdisplay.c,v 1.48 2001/01/03 23:03:45 enami Exp $ */
/*
* Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved.
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: wsdisplay.c,v 1.47 2001/01/03 23:00:24 enami Exp $");
__KERNEL_RCSID(0, "$NetBSD: wsdisplay.c,v 1.48 2001/01/03 23:03:45 enami Exp $");
#include <sys/param.h>
#include <sys/conf.h>
@ -1782,6 +1782,9 @@ wsdisplay_pollc(dev, on)
struct wsdisplay_softc *sc;
sc = device_lookup(&wsdisplay_cd, WSDISPLAYUNIT(dev));
if (sc == NULL)
/* cnpollc() may be called before attach */
return;
wsdisplay_cons_pollmode = on;