From 58c7c3868e2efc95ee3146443f79765de14301af Mon Sep 17 00:00:00 2001
From: paul-szczepanek-arm
 <33840200+paul-szczepanek-arm@users.noreply.github.com>
Date: Thu, 6 Dec 2018 15:04:23 +0000
Subject: [PATCH] check return value of DmSyncStart

---
 .../targets/TARGET_CORDIO/source/CordioPalGap.cpp           | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioPalGap.cpp b/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioPalGap.cpp
index 022147577d..c70b7b4da5 100644
--- a/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioPalGap.cpp
+++ b/features/FEATURE_BLE/targets/TARGET_CORDIO/source/CordioPalGap.cpp
@@ -1014,7 +1014,7 @@ ble_error_t Gap::periodic_advertising_create_sync(
         );
     }
 
-    DmSyncStart(
+    dmSyncId_t sync_id = DmSyncStart(
         advertising_sid,
         peer_address_type.value(),
         peer_address.data(),
@@ -1022,7 +1022,11 @@ ble_error_t Gap::periodic_advertising_create_sync(
         sync_timeout
     );
 
+    if (sync_id == DM_SYNC_ID_NONE) {
         return BLE_ERROR_NONE;
+    } else {
+        return BLE_ERROR_INTERNAL_STACK_FAILURE;
+    }
 }
 
 ble_error_t Gap::cancel_periodic_advertising_create_sync()