--- src/sys/kern/tty_tty.c	2004/11/12 00:09:24	1.11
+++ src/sys/kern/tty_tty.c	2005/01/29 05:48:17	1.12
@@ -95,6 +95,8 @@ cttyopen(dev_t dev, int flag, int mode,
 			vsetflags(ttyvp, VCTTYISOPEN);
 			vn_lock(ttyvp, LK_EXCLUSIVE | LK_RETRY, td);
 			error = VOP_OPEN(ttyvp, flag, NOCRED, NULL, td);
+			if (error)
+				vclrflags(ttyvp, VCTTYISOPEN);
 			VOP_UNLOCK(ttyvp, 0, td);
 		}
 	} else {