From b7064eaa65112fa87bd75ddeed768bae0645f271 Mon Sep 17 00:00:00 2001
From: =?utf8?q?J=C3=A9r=C3=A9mie=20Galarneau?=
 <jeremie.galarneau@efficios.com>
Date: Tue, 18 Nov 2014 13:37:29 -0500
Subject: [PATCH] Fix: Missing rcu_read_lock in ust_app_get_nb_stream()
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Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---
 src/bin/lttng-sessiond/ust-app.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bin/lttng-sessiond/ust-app.c b/src/bin/lttng-sessiond/ust-app.c
index 132bde1bd..891d75f7c 100644
--- a/src/bin/lttng-sessiond/ust-app.c
+++ b/src/bin/lttng-sessiond/ust-app.c
@@ -5152,10 +5152,12 @@ unsigned int ust_app_get_nb_stream(struct ltt_ust_session *usess)
 		cds_list_for_each_entry(reg, &usess->buffer_reg_uid_list, lnode) {
 			struct buffer_reg_channel *reg_chan;
 
+			rcu_read_lock();
 			cds_lfht_for_each_entry(reg->registry->channels->ht, &iter.iter,
 					reg_chan, node.node) {
 				ret += reg_chan->stream_count;
 			}
+			rcu_read_unlock();
 		}
 		break;
 	}
-- 
2.34.1