[src/trunk]: src/sys/kern When freeing a session, remove the reference to it ...

[pk <pk%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a27258416f9c
branches:  trunk
changeset: 503344:a27258416f9c
user:      pk <pk%NetBSD.org@localhost>
date:      Sun Feb 04 22:32:24 2001 +0000

description:
When freeing a session, remove the reference to it from the associated tty.

diffstat:

 sys/kern/kern_proc.c |  9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diffs (28 lines):

diff -r 3a1ebd8802cc -r a27258416f9c sys/kern/kern_proc.c
--- a/sys/kern/kern_proc.c      Sun Feb 04 22:32:15 2001 +0000
+++ b/sys/kern/kern_proc.c      Sun Feb 04 22:32:24 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_proc.c,v 1.43 2000/11/08 14:28:13 ad Exp $        */
+/*     $NetBSD: kern_proc.c,v 1.44 2001/02/04 22:32:24 pk Exp $        */
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -439,12 +439,17 @@
        struct pgrp *pgrp;
 {
 
+       /* Remove reference (if any) from tty to this process group */
        if (pgrp->pg_session->s_ttyp != NULL && 
            pgrp->pg_session->s_ttyp->t_pgrp == pgrp)
                pgrp->pg_session->s_ttyp->t_pgrp = NULL;
        LIST_REMOVE(pgrp, pg_hash);
-       if (--pgrp->pg_session->s_count == 0)
+       if (--pgrp->pg_session->s_count == 0) {
+               /* Remove reference (if any) from tty to this session */
+               if (pgrp->pg_session->s_ttyp != NULL)
+                       pgrp->pg_session->s_ttyp->t_session = NULL;
                FREE(pgrp->pg_session, M_SESSION);
+       }
        pool_put(&pgrp_pool, pgrp);
 }