diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c
index 918730d749325147c3772c2f858cb18e805b1291..19ce9d22bfd7c56aabbc417735cd29ebe2f48f62 100644
--- a/kernel/trace/trace_events_trigger.c
+++ b/kernel/trace/trace_events_trigger.c
@@ -1067,7 +1067,14 @@ int set_trigger_filter(char *filter_str,
 
 	/* The filter is for the 'trigger' event, not the triggered event */
 	ret = create_event_filter(file->tr, file->event_call,
-				  filter_str, false, &filter);
+				  filter_str, true, &filter);
+
+	/* Only enabled set_str for error handling */
+	if (filter) {
+		kfree(filter->filter_string);
+		filter->filter_string = NULL;
+	}
+
 	/*
 	 * If create_event_filter() fails, filter still needs to be freed.
 	 * Which the calling code will do with data->filter.