X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=kernel%2Ffork.c;fp=kernel%2Ffork.c;h=44e64d7ba29b8ecba78bc093ae18b8c0325e4047;hb=c465a76af658b443075d6efee1c3131257643020;hp=021ae012cc757096bad23977c55f352076e9a231;hpb=1508487e7f16d992ad23cabd3712563ff912f413;p=linux-2.6-omap-h63xx.git

diff --git a/kernel/fork.c b/kernel/fork.c
index 021ae012cc7..44e64d7ba29 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));