0003_ble_mtu_change.patch

diff --git a/src/amazon-freertos/libraries/c_sdk/standard/ble/src/iot_ble_gatt.c b/src/amazon-freertos/libraries/c_sdk/standard/ble/src/iot_ble_gatt.c
index 5f45e9ed4..ff2fc77d7 100644
--- a/src/amazon-freertos/libraries/c_sdk/standard/ble/src/iot_ble_gatt.c
+++ b/src/amazon-freertos/libraries/c_sdk/standard/ble/src/iot_ble_gatt.c
@@ -562,14 +562,12 @@ void _mtuChangedCb( uint16_t connId,
     IotLink_t * pEventListIndex;
     _bleSubscrEventListElement_t * pEventIndex;
 
-    IotMutex_Lock( &_BTInterface.threadSafetyMutex );
     /* Get the event associated to the callback */
     IotContainers_ForEach( &_BTInterface.subscrEventListHead[ eBLEMtuChanged ], pEventListIndex )
     {
         pEventIndex = IotLink_Container( _bleSubscrEventListElement_t, pEventListIndex, eventList );
         pEventIndex->subscribedEventCb.pMtuChangedCb( connId, mtu );
     }
-    IotMutex_Unlock( &_BTInterface.threadSafetyMutex );
 }
 
 /*-----------------------------------------------------------*/