diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 021ae012cc75..44e64d7ba29b 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -826,6 +826,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk) sig->leader = 0; /* session leadership doesn't inherit */ sig->tty_old_pgrp = NULL; + sig->tty = NULL; sig->cutime = sig->cstime = cputime_zero; sig->gtime = cputime_zero; @@ -853,6 +854,7 @@ void __cleanup_signal(struct signal_struct *sig) { thread_group_cputime_free(sig); exit_thread_group_keys(sig); + tty_kref_put(sig->tty); kmem_cache_free(signal_cachep, sig); } @@ -1235,7 +1237,8 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->nsproxy->pid_ns->child_reaper = p; p->signal->leader_pid = pid; - p->signal->tty = current->signal->tty; + tty_kref_put(p->signal->tty); + p->signal->tty = tty_kref_get(current->signal->tty); set_task_pgrp(p, task_pgrp_nr(current)); set_task_session(p, task_session_nr(current)); attach_pid(p, PIDTYPE_PGID, task_pgrp(current)); |