diff --git a/kernel/signal.c b/kernel/signal.c
index 4754985a8..f81f7f19d 100755
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1847,11 +1847,10 @@ struct sigqueue *sigqueue_alloc(void)
 
 void sigqueue_free(struct sigqueue *q)
 {
-	spinlock_t *lock = &current->sighand->siglock;
 	unsigned long flags;
+	spinlock_t *lock = &current->sighand->siglock;
 
-	if (WARN_ON_ONCE(!(q->flags & SIGQUEUE_PREALLOC)))
-		return;
+	BUG_ON(!(q->flags & SIGQUEUE_PREALLOC));
 	/*
 	 * We must hold ->siglock while testing q->list
 	 * to serialize with collect_signal() or with
@@ -1879,10 +1878,7 @@ int send_sigqueue(struct sigqueue *q, struct pid *pid, enum pid_type type)
 	unsigned long flags;
 	int ret, result;
 
-	if (WARN_ON_ONCE(!(q->flags & SIGQUEUE_PREALLOC)))
-		return 0;
-	if (WARN_ON_ONCE(q->info.si_code != SI_TIMER))
-		return 0;
+	BUG_ON(!(q->flags & SIGQUEUE_PREALLOC));
 
 	ret = -1;
 	rcu_read_lock();
@@ -1901,6 +1897,7 @@ int send_sigqueue(struct sigqueue *q, struct pid *pid, enum pid_type type)
 		 * If an SI_TIMER entry is already queue just increment
 		 * the overrun count.
 		 */
+		BUG_ON(q->info.si_code != SI_TIMER);
 		q->info.si_overrun++;
 		result = TRACE_SIGNAL_ALREADY_PENDING;
 		goto out;