From 851ceb570a772d6b53009eee22ec2c21037a8997 Mon Sep 17 00:00:00 2001
From: Jeroen88 <info@el-mago.nl>
Date: Tue, 1 Jan 2019 15:18:24 +0100
Subject: [PATCH 1/3] Fix WiFiClientRxBuffer::fillBuffer() error in handing a
 negative res from the call to recv()

---
 libraries/BLE                     |  2 +-
 libraries/WiFi/src/WiFiClient.cpp | 10 ++++++++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/libraries/BLE b/libraries/BLE
index b232e7f5f0e..11a0aa64532 160000
--- a/libraries/BLE
+++ b/libraries/BLE
@@ -1 +1 @@
-Subproject commit b232e7f5f0e87f36afbc2f4e03a2c49c48dd47bc
+Subproject commit 11a0aa645326aed0cb681e86060fe28d4623bc68
diff --git a/libraries/WiFi/src/WiFiClient.cpp b/libraries/WiFi/src/WiFiClient.cpp
index 5c42cc9da1b..28450c0592c 100644
--- a/libraries/WiFi/src/WiFiClient.cpp
+++ b/libraries/WiFi/src/WiFiClient.cpp
@@ -58,6 +58,10 @@ class WiFiClientRxBuffer {
         {
             if(!_buffer){
                 _buffer = (uint8_t *)malloc(_size);
+                if(!_buffer) {
+                    _failed = true;
+                    return 0;
+                }
             }
             if(_fill && _pos == _fill){
                 _fill = 0;
@@ -67,8 +71,10 @@ class WiFiClientRxBuffer {
                 return 0;
             }
             int res = recv(_fd, _buffer + _fill, _size - _fill, MSG_DONTWAIT);
-            if(res < 0 && errno != EWOULDBLOCK) {
-                _failed = true;
+            if(res < 0) {
+                if(errno != EWOULDBLOCK) {
+                    _failed = true;
+                }
                 return 0;
             }
             _fill += res;

From 0af48f2ce58ad4ec85a210a733aa483898a0f671 Mon Sep 17 00:00:00 2001
From: Jeroen88 <info@el-mago.nl>
Date: Tue, 1 Jan 2019 16:43:16 +0100
Subject: [PATCH 2/3] Add logging in fillBuffer() if allocation of buffer fails

---
 libraries/WiFi/src/WiFiClient.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/WiFi/src/WiFiClient.cpp b/libraries/WiFi/src/WiFiClient.cpp
index 28450c0592c..8ea6c7afb65 100644
--- a/libraries/WiFi/src/WiFiClient.cpp
+++ b/libraries/WiFi/src/WiFiClient.cpp
@@ -59,6 +59,7 @@ class WiFiClientRxBuffer {
             if(!_buffer){
                 _buffer = (uint8_t *)malloc(_size);
                 if(!_buffer) {
+                    log_e("Not enough memory to allocate buffer");
                     _failed = true;
                     return 0;
                 }

From 8538ae101f867aced65e1b8aa06ae362e67af165 Mon Sep 17 00:00:00 2001
From: Jeroen88 <info@el-mago.nl>
Date: Wed, 2 Jan 2019 15:37:55 +0100
Subject: [PATCH 3/3] Remove BLE subdirectory

---
 .gitmodules   | 3 ---
 libraries/BLE | 1 -
 2 files changed, 4 deletions(-)
 delete mode 160000 libraries/BLE

diff --git a/.gitmodules b/.gitmodules
index eeeb114ee67..c9e5e6fd92e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,3 @@
-[submodule "libraries/BLE"]
-	path = libraries/BLE
-	url = https://github.com/nkolban/ESP32_BLE_Arduino.git
 [submodule "libraries/AzureIoT"]
 	path = libraries/AzureIoT
 	url = https://github.com/VSChina/ESP32_AzureIoT_Arduino
diff --git a/libraries/BLE b/libraries/BLE
deleted file mode 160000
index 11a0aa64532..00000000000
--- a/libraries/BLE
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 11a0aa645326aed0cb681e86060fe28d4623bc68