From 3f33e3efa87b3d9543b0c3f681c788e5beb8b6ba Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Tue, 27 Nov 2018 12:09:36 +0100
Subject: [PATCH] Add dynamic buffer space

Add dynamic buffer space
---
 sonoff/xdrv_08_serial_bridge.ino | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/sonoff/xdrv_08_serial_bridge.ino b/sonoff/xdrv_08_serial_bridge.ino
index 3d28e49bc..d1c8e81aa 100644
--- a/sonoff/xdrv_08_serial_bridge.ino
+++ b/sonoff/xdrv_08_serial_bridge.ino
@@ -36,7 +36,7 @@ TasmotaSerial *SerialBridgeSerial;
 uint8_t serial_bridge_active = 1;
 uint8_t serial_bridge_in_byte_counter = 0;
 unsigned long serial_bridge_polling_window = 0;
-char serial_bridge_buffer[SERIAL_BRIDGE_BUFFER_SIZE];
+char *serial_bridge_buffer = NULL;
 
 void SerialBridgeInput(void)
 {
@@ -75,10 +75,13 @@ void SerialBridgeInit(void)
 {
   serial_bridge_active = 0;
   if ((pin[GPIO_SBR_RX] < 99) && (pin[GPIO_SBR_TX] < 99)) {
-    SerialBridgeSerial = new TasmotaSerial(pin[GPIO_SBR_RX], pin[GPIO_SBR_TX]);
-    if (SerialBridgeSerial->begin(Settings.sbaudrate * 1200)) {  // Baud rate is stored div 1200 so it fits into one byte
-      serial_bridge_active = 1;
-      SerialBridgeSerial->flush();
+    serial_bridge_buffer = (char*)(malloc(SERIAL_BRIDGE_BUFFER_SIZE));
+    if (serial_bridge_buffer != NULL) {
+      SerialBridgeSerial = new TasmotaSerial(pin[GPIO_SBR_RX], pin[GPIO_SBR_TX]);
+      if (SerialBridgeSerial->begin(Settings.sbaudrate * 1200)) {  // Baud rate is stored div 1200 so it fits into one byte
+        serial_bridge_active = 1;
+        SerialBridgeSerial->flush();
+      }
     }
   }
 }
@@ -122,7 +125,7 @@ boolean SerialBridgeCommand(void)
     snprintf_P(mqtt_data, sizeof(mqtt_data), S_JSON_COMMAND_LVALUE, command, Settings.sbaudrate * 1200);
   }
   else serviced = false;  // Unknown command
-  
+
   return serviced;
 }