From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Tue, 18 Nov 2014 19:30:17 +0000 (-0500)
Subject: Fix: Missing rcu_read_lock in list_lttng_agent_events()
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=e5bbf67813693bf82d6919918fb0701431be9d0b;p=lttng-tools.git

Fix: Missing rcu_read_lock in list_lttng_agent_events()

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index 30f7d49ba..7baef8828 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -220,7 +220,9 @@ static int list_lttng_agent_events(struct agent *agt,
 
 	DBG3("Listing agent events");
 
+	rcu_read_lock();
 	nb_event = lttng_ht_get_count(agt->events);
+	rcu_read_unlock();
 	if (nb_event == 0) {
 		ret = nb_event;
 		goto error;