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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-07-09 21:34:25 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-09 21:34:25 +0100
commitf974a8ec96571535ee07880a023bcce0e3f2c76b (patch)
tree5cf09207b1ad292a55275cd0b24999fa29b9dfe8 /kernel/exit.c
parentc0b8556f2f8146bd38324b14b1ce00f249ba8ed9 (diff)
parent4ed47896935573c8423d05bddda3f269d6e6c613 (diff)
Merge branch 'machtypes' into pxa-palm
Diffstat (limited to 'kernel/exit.c')
-rw-r--r--kernel/exit.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 1510f78a0ff..8f6185e69b6 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -126,6 +126,12 @@ static void __exit_signal(struct task_struct *tsk)
__unhash_process(tsk);
+ /*
+ * Do this under ->siglock, we can race with another thread
+ * doing sigqueue_free() if we have SIGQUEUE_PREALLOC signals.
+ */
+ flush_sigqueue(&tsk->pending);
+
tsk->signal = NULL;
tsk->sighand = NULL;
spin_unlock(&sighand->siglock);
@@ -133,7 +139,6 @@ static void __exit_signal(struct task_struct *tsk)
__cleanup_sighand(sighand);
clear_tsk_thread_flag(tsk,TIF_SIGPENDING);
- flush_sigqueue(&tsk->pending);
if (sig) {
flush_sigqueue(&sig->shared_pending);
taskstats_tgid_free(sig);