diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 003e5f37861e3621b56ed552858855cabf262450..1557a20b6500ec919b75f46d6f7b48dca8853c70 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -3506,6 +3506,7 @@ static int trace_action_create(struct hist_trigger_data *hist_data,
 
 			var_ref_idx = find_var_ref_idx(hist_data, var_ref);
 			if (WARN_ON(var_ref_idx < 0)) {
+				kfree(p);
 				ret = var_ref_idx;
 				goto err;
 			}