diff options
| author | jhb <jhb@FreeBSD.org> | 2001-03-07 03:37:06 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2001-03-07 03:37:06 +0000 |
| commit | 9cd254601baefc2dc9c953abe9747717374ff8b1 (patch) | |
| tree | ac4298224e8af28e8b2f904a43a2925c21dfc798 /sys/kern/tty.c | |
| parent | ace71d59bf35fa6d911520ec855d0100773422a8 (diff) | |
| download | FreeBSD-src-9cd254601baefc2dc9c953abe9747717374ff8b1.zip FreeBSD-src-9cd254601baefc2dc9c953abe9747717374ff8b1.tar.gz | |
Grab the process lock while calling psignal and before calling psignal.
Diffstat (limited to 'sys/kern/tty.c')
| -rw-r--r-- | sys/kern/tty.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/kern/tty.c b/sys/kern/tty.c index a7ba12d..d57135d 100644 --- a/sys/kern/tty.c +++ b/sys/kern/tty.c @@ -1467,8 +1467,14 @@ ttymodem(tp, flag) !ISSET(tp->t_cflag, CLOCAL)) { SET(tp->t_state, TS_ZOMBIE); CLR(tp->t_state, TS_CONNECTED); - if (tp->t_session && tp->t_session->s_leader) - psignal(tp->t_session->s_leader, SIGHUP); + if (tp->t_session && tp->t_session->s_leader) { + struct proc *p; + + p = tp->t_session->s_leader; + PROC_LOCK(p); + psignal(p, SIGHUP); + PROC_UNLOCK(p); + } ttyflush(tp, FREAD | FWRITE); return (0); } |
