Kconfig: fix dependency issue when building in-tree without CONFIG_FTRACE

[lttng-modules.git] / src / lttng-events.c

diff --git a/src/lttng-events.c b/src/lttng-events.c
index 2b72621cf2d6fccacaed54e3c8dde1159500ddb5..62f8e054043ef7c668ab3ed5e253c739d7871d0f 100644 (file)
--- a/src/lttng-events.c
+++ b/src/lttng-events.c
@@ -214,8 +214,10 @@ void lttng_session_destroy(struct lttng_session *session)
                BUG_ON(chan->channel_type == METADATA_CHANNEL);
                _lttng_channel_destroy(chan);
        }
+       mutex_lock(&session->metadata_cache->lock);
        list_for_each_entry(metadata_stream, &session->metadata_cache->metadata_stream, list)
                _lttng_metadata_channel_hangup(metadata_stream);
+       mutex_unlock(&session->metadata_cache->lock);
        lttng_id_tracker_destroy(&session->pid_tracker, false);
        lttng_id_tracker_destroy(&session->vpid_tracker, false);
        lttng_id_tracker_destroy(&session->uid_tracker, false);
@@ -1700,9 +1702,9 @@ void lttng_metadata_end(struct lttng_session *session)
        if (atomic_dec_return(&session->metadata_cache->producing) == 0) {
                struct lttng_metadata_stream *stream;
 
-               mutex_unlock(&session->metadata_cache->lock);
                list_for_each_entry(stream, &session->metadata_cache->metadata_stream, list)
                        wake_up_interruptible(&stream->read_wait);
+               mutex_unlock(&session->metadata_cache->lock);
        }
 }