[PATCH] fix signal->live leak in copy_process()

[Oleg Nesterov]

[PATCH] fix ->signal->live leak in copy_process()

exit_signal() (called from copy_process's error path) should decrement
->signal->live, otherwise forking process will miss 'group_dead' in
do_exit().

Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>

--- 2.6.14/kernel/signal.c~	2005-10-29 01:14:57.000000000 +0400
+++ 2.6.14/kernel/signal.c	2005-10-29 22:40:37.000000000 +0400
@@ -406,6 +406,8 @@ void __exit_signal(struct task_struct *t
 
 void exit_signal(struct task_struct *tsk)
 {
+	atomic_dec(&tsk->signal->live);
+
 	write_lock_irq(&tasklist_lock);
 	__exit_signal(tsk);
 	write_unlock_irq(&tasklist_lock);
-
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