return error when cannot cancel

Author: paul-szczepanek-arm

connectivity/FEATURE_BLE/include/ble/Gap.h

@@ -1007,6 +1007,7 @@ class Gap {
      *  This call will attempt to cancel the most recently requested connection.
      *
      * @return BLE_ERROR_NONE if the connection attempt has been requested to be cancelled.
+     * Returns BLE_ERROR_OPERATION_NOT_PERMITTED if no ongoing connection for last used address found.
      */
     MBED_DEPRECATED_SINCE("mbed-os-6.3.0", "Defective API. Please use the cancelConnect that takes peer address as parameters.")
     ble_error_t cancelConnect();
@@ -1019,6 +1020,7 @@ class Gap {
      * @param peerAddress Address you want to cancel connection process for.
      *
      * @return BLE_ERROR_NONE if the connection attempt has been requested to be cancelled.
+     * Returns BLE_ERROR_OPERATION_NOT_PERMITTED if no ongoing connection for address found.
      */
     ble_error_t cancelConnect(
         peer_address_type_t peerAddressType,

connectivity/FEATURE_BLE/libraries/TARGET_CORDIO/source/PalGapImpl.cpp

@@ -335,11 +335,11 @@ ble_error_t PalGap::cancel_connection_creation(
                 /* connection handle */ connection_id,
                 /* reason - invalid (use success) */ 0x00
             );
-            break;
+            return BLE_ERROR_NONE;
         }
     }
 
-    return BLE_ERROR_NONE;
+    return BLE_ERROR_OPERATION_NOT_PERMITTED;
 }
 
 

connectivity/FEATURE_BLE/libraries/ble-api-implementation/source/GapImpl.cpp

@@ -635,7 +635,7 @@ ble_error_t Gap::cancelConnect()
     if (_last_used_peer_address_type != peer_address_type_t::ANONYMOUS) {
         return cancelConnect(_last_used_peer_address_type, _last_used_peer_address);
     }
-    return BLE_ERROR_NONE;
+    return BLE_ERROR_OPERATION_NOT_PERMITTED;
 }
 
 ble_error_t Gap::cancelConnect(