Fix: add missing rcu lock for UST lookup

[lttng-tools.git] / src / bin / lttng-sessiond / context.c

diff --git a/src/bin/lttng-sessiond/context.c b/src/bin/lttng-sessiond/context.c
index cee61f764ce192350583154df8e40d808ef7edac..ef5e3e1f01b5e62977a48f116f8f2ceb3b72522b 100644 (file)
--- a/src/bin/lttng-sessiond/context.c
+++ b/src/bin/lttng-sessiond/context.c
@@ -223,6 +223,8 @@ int context_ust_add(struct ltt_ust_session *usess, int domain,
        struct lttng_ht *chan_ht;
        struct ltt_ust_channel *uchan = NULL;
 
+       rcu_read_lock();
+
        /*
         * Define which channel's hashtable to use from the domain or quit if
         * unknown domain.
@@ -285,5 +287,6 @@ int context_ust_add(struct ltt_ust_session *usess, int domain,
        }
 
 error:
+       rcu_read_unlock();
        return ret;
 }