From d62441c3e3e78e802ada1fc3c027fe291bf9a99e Mon Sep 17 00:00:00 2001
From: Maximilian Muecke <muecke.maximilian@gmail.com>
Date: Mon, 15 Jun 2026 15:37:04 +0200
Subject: [PATCH] fix: free d on early return in
 CO_Embed2_Dist_tau_d_expfit_meandiff

---
 C/CO_AutoCorr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/C/CO_AutoCorr.c b/C/CO_AutoCorr.c
index 2b0511915..33832a4e2 100644
--- a/C/CO_AutoCorr.c
+++ b/C/CO_AutoCorr.c
@@ -291,6 +291,7 @@ double CO_Embed2_Dist_tau_d_expfit_meandiff(const double y[], const int size)
     
     int nBins = num_bins_auto(d, size-tau-1);
     if (nBins == 0){
+        free(d);
         return 0;
     }
     int * histCounts = malloc(nBins * sizeof(double));