Fix: filter validator use after free

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/lttng-filter-validator.c b/lttng-filter-validator.c
index a996945d59143855fa17c80adb6d7b5d22c421c7..446fc41bbda9b657a615871ed779b59c2b527227 100644 (file)
--- a/lttng-filter-validator.c
+++ b/lttng-filter-validator.c
@@ -104,8 +104,9 @@ int merge_point_add_check(struct mp_table *mp_table, unsigned long target_pc,
                                target_pc);
                        return -EINVAL;
                }
+       } else {
+               hlist_add_head(&mp_node->node, head);
        }
-       hlist_add_head(&mp_node->node, head);
        return 0;
 }