From 9a3a479c4f20197f6836582860475f7534d62fc3 Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Fri, 17 Mar 2023 21:17:53 +0100
Subject: [PATCH] Reduce heap fragmentation

---
 tasmota/tasmota_xdrv_driver/xdrv_03_energy.ino       | 6 +++---
 tasmota/tasmota_xdrv_driver/xdrv_03_esp32_energy.ino | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tasmota/tasmota_xdrv_driver/xdrv_03_energy.ino b/tasmota/tasmota_xdrv_driver/xdrv_03_energy.ino
index 252de3f48..44959701c 100644
--- a/tasmota/tasmota_xdrv_driver/xdrv_03_energy.ino
+++ b/tasmota/tasmota_xdrv_driver/xdrv_03_energy.ino
@@ -156,8 +156,8 @@ bool EnergyFmtMalloc(void) {
 }
 
 void EnergyFmtFree(void) {
-  free(Energy->value);
-  Energy->value = nullptr;
+//  free(Energy->value);                    // Let's keep it for future use reducing heap fragmentation
+//  Energy->value = nullptr;
 }
 
 char* EnergyFmt(float* input, uint32_t resolution, uint32_t single = 0);
@@ -1132,7 +1132,7 @@ void EnergyDrvInit(void) {
   Energy = (tEnergy*)calloc(sizeof(tEnergy), 1);    // Need calloc to reset registers to 0/false
   if (!Energy) { return; }
 
-  EnergyFmtFree();
+  Energy->value = nullptr;
 //  Energy->voltage_common = false;
 //  Energy->frequency_common = false;
 //  Energy->use_overtemp = false;
diff --git a/tasmota/tasmota_xdrv_driver/xdrv_03_esp32_energy.ino b/tasmota/tasmota_xdrv_driver/xdrv_03_esp32_energy.ino
index 2edf08b33..58d08fa58 100644
--- a/tasmota/tasmota_xdrv_driver/xdrv_03_esp32_energy.ino
+++ b/tasmota/tasmota_xdrv_driver/xdrv_03_esp32_energy.ino
@@ -383,8 +383,8 @@ bool EnergyFmtMalloc(void) {
 }
 
 void EnergyFmtFree(void) {
-  free(Energy->value);
-  Energy->value = nullptr;
+//  free(Energy->value);                    // Let's keep it for future use reducing heap fragmentation
+//  Energy->value = nullptr;
 }
 
 char* EnergyFmt(float* input, uint32_t resolution, uint32_t single = 0);
@@ -1367,7 +1367,7 @@ void EnergyDrvInit(void) {
   EnergySettingsLoad(0);
   EnergyRtcSettingsLoad();
 
-  EnergyFmtFree();
+  Energy->value = nullptr;
 //  Energy->voltage_common = false;
 //  Energy->frequency_common = false;
 //  Energy->use_overtemp = false;