From 40fe3866141aa4e675b3ad1d1a6743588c881aef Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Date: Mon, 1 Mar 2010 15:15:19 -0500
Subject: [PATCH] LFQ: Fix unpaired lock/unlock

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---
 tests/test_urcu_lfq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/test_urcu_lfq.c b/tests/test_urcu_lfq.c
index 90587b7..9560c74 100644
--- a/tests/test_urcu_lfq.c
+++ b/tests/test_urcu_lfq.c
@@ -333,8 +333,10 @@ void *dequeue(struct queue *q, bool *not_empty)
 
 		if (head == tail) {
 			/* If all three are consistent, the queue is empty.  */
-			if (!next)
+			if (!next) {
+				rcu_read_unlock();
 				return NULL;
+			}
 
 			/* Help moving tail further.  */
 			uatomic_cmpxchg(&q->tail, tail, next);
-- 
2.34.1