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| author |   beck <beck@openbsd.org> | 2004-02-23 21:17:54 +0000 |
|---|---|---|
| committer | beck <beck@openbsd.org> | 2004-02-23 21:17:54 +0000 |
| commit | 22f494918d33bf0f73dc3fc2028a0085c6e74395 (patch) | |
| tree | 0dca499bf40bba225c04347ec3e3a3f1c00c6da9 | |
| parent | bogus leftover SRCS line (diff) | |
| download | wireguard-openbsd-22f494918d33bf0f73dc3fc2028a0085c6e74395.tar.xz wireguard-openbsd-22f494918d33bf0f73dc3fc2028a0085c6e74395.zip | |
Make sure we allow for the time when check_pty has not yet been called
before we get invoked, by making sure getfree thinks an unused and
unallocated pt_softc entry is actually free rather than following NULL.
ok cedric@
| -rw-r--r-- | sys/kern/tty_pty.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/kern/tty_pty.c b/sys/kern/tty_pty.c index c891986fd1e..f4cf902e880 100644 --- a/sys/kern/tty_pty.c +++ b/sys/kern/tty_pty.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tty_pty.c,v 1.19 2004/02/10 21:06:50 millert Exp $ */ +/* $OpenBSD: tty_pty.c,v 1.20 2004/02/23 21:17:54 beck Exp $ */ /* $NetBSD: tty_pty.c,v 1.33.4.1 1996/06/02 09:08:11 mrg Exp $ */ /* @@ -1005,7 +1005,8 @@ static __inline int pty_isfree_locked(int minor) { struct pt_softc *pt = pt_softc[minor]; - return (pt->pt_tty == NULL || pt->pt_tty->t_oproc == NULL); + return (pt == NULL || pt->pt_tty == NULL || + pt->pt_tty->t_oproc == NULL); } static int |