From 5782e93a194296252466e8c9e844a6c2503c5c70 Mon Sep 17 00:00:00 2001
From: Steve Cartmell <steve.cartmell@arm.com>
Date: Wed, 21 Nov 2018 17:56:14 +0000
Subject: [PATCH] fix(pan-cordio): Wrap call to wsfOsReadyToSleep in a critical
 section

The function wsfOsReadyToSleep should only be called when interrupts are
disabled. Entering a critical section before calling the function fixes
any potential issues.
---
 .../FEATURE_BLE/targets/TARGET_CORDIO/source/CordioBLE.cpp     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioBLE.cpp b/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioBLE.cpp
index 144d1bf76d..c13b0228f9 100644
--- a/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioBLE.cpp
+++ b/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioBLE.cpp
@@ -17,6 +17,7 @@
 #include "mbed.h"
 #include "us_ticker_api.h"
 #include "BLE.h"
+#include "CriticalSectionLock.h"
 #include "wsf_types.h"
 #include "wsf_msg.h"
 #include "wsf_os.h"
@@ -412,6 +413,8 @@ void BLE::callDispatcher()
 
     wsfOsDispatcher();
 
+    CriticalSectionLock critical_section;
+
     if (wsfOsReadyToSleep()) {
         static Timeout nextTimeout;
         // setup an mbed timer for the next Cordio timeout