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authorSteve VanDeBogart <vandebo-lkml@NerdBox.Net>2008-08-26 15:14:36 -0700
committerIngo Molnar <mingo@elte.hu>2008-08-27 09:10:09 +0200
commit2633f0e57b1127f4060d70bf460140dc9bb19386 (patch)
treedb67beb9715fee165f8c8baaee47fc023b26dceb
parent74870172824a78640ec4f03058d9bd35dfa08618 (diff)
exit signals: use of uninitialized field notify_count
task->signal->notify_count is only initialized if task->signal->group_exit_task is not NULL. Reorder a conditional so that uninitialised memory is not used. Found by Valgrind. Signed-off-by: Steve VanDeBogart <vandebo-lkml@nerdbox.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/exit.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 38ec4063014..75c64738763 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -918,8 +918,8 @@ static void exit_notify(struct task_struct *tsk, int group_dead)
/* mt-exec, de_thread() is waiting for us */
if (thread_group_leader(tsk) &&
- tsk->signal->notify_count < 0 &&
- tsk->signal->group_exit_task)
+ tsk->signal->group_exit_task &&
+ tsk->signal->notify_count < 0)
wake_up_process(tsk->signal->group_exit_task);
write_unlock_irq(&tasklist_lock);