From 328523f5e3289de193e04aaf4bf13f9672078fd6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20P=2E=20Sch=C3=BCmann?=
 <33527753+Schuemi@users.noreply.github.com>
Date: Wed, 25 Jul 2018 12:56:41 +0200
Subject: [PATCH] Memory leak (#1672)

When a package of size 0 arrives, "buf" is created, but never released. (Sorry, that was my mistake in the last patch)
---
 libraries/WiFi/src/WiFiUdp.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/libraries/WiFi/src/WiFiUdp.cpp b/libraries/WiFi/src/WiFiUdp.cpp
index acc7a183..476b5a4a 100644
--- a/libraries/WiFi/src/WiFiUdp.cpp
+++ b/libraries/WiFi/src/WiFiUdp.cpp
@@ -221,9 +221,10 @@ int WiFiUDP::parsePacket(){
   }
   remote_ip = IPAddress(si_other.sin_addr.s_addr);
   remote_port = ntohs(si_other.sin_port);
-  if (len == 0) return 0;
-  rx_buffer = new cbuf(len);
-  rx_buffer->write(buf, len);
+  if (len > 0) {
+    rx_buffer = new cbuf(len);
+    rx_buffer->write(buf, len);
+  }
   delete[] buf;
   return len;
 }