Small fix to lttng list session

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

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index 8e794bdf4365be1779c2f0bb94c5e99dae5b03ee..6ae374483a428019721591fc012924044eb93758 100644 (file)
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -769,12 +769,18 @@ static void update_ust_app(int app_sock)
 {
        struct ltt_session *sess, *stmp;
 
+       session_lock_list();
+
        /* For all tracing session(s) */
        cds_list_for_each_entry_safe(sess, stmp, &session_list_ptr->head, list) {
+               session_lock(sess);
                if (sess->ust_session) {
                        ust_app_global_update(sess->ust_session, app_sock);
                }
+               session_unlock(sess);
        }
+
+       session_unlock_list();
 }
 
 /*
@@ -3471,11 +3477,7 @@ static int process_client_msg(struct command_ctx *cmd_ctx)
 
                session_lock_list();
                nr_sessions = lttng_sessions_count(cmd_ctx->creds.uid, cmd_ctx->creds.gid);
-               if (nr_sessions == 0) {
-                       ret = LTTCOMM_NO_SESSION;
-                       session_unlock_list();
-                       goto error;
-               }
+
                ret = setup_lttng_msg(cmd_ctx, sizeof(struct lttng_session) * nr_sessions);
                if (ret < 0) {
                        session_unlock_list();