From 9a291c876c6c2f0fa3946ba16e93badd91d0c188 Mon Sep 17 00:00:00 2001
From: andig <cpuidle@gmx.de>
Date: Wed, 6 Apr 2016 18:49:32 +0200
Subject: [PATCH] Gracefully handle out of memory

---
 src/WebResponses.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/WebResponses.cpp b/src/WebResponses.cpp
index f418744..36266d1 100644
--- a/src/WebResponses.cpp
+++ b/src/WebResponses.cpp
@@ -267,6 +267,10 @@ size_t AsyncAbstractResponse::_ack(AsyncWebServerRequest *request, size_t len, u
       outLen = (remaining > space)?space:remaining;
     }
     uint8_t *buf = (uint8_t *)malloc(outLen);
+    if (!buf) {
+      // os_printf("_ack malloc %d failed\n", outLen);
+      return 0;
+    }
 
     if(_chunked){
       readLen = _fillBuffer(buf, outLen - 8);