From 06caa0ff143b7f3c9da78083723c9413aee9bd7e Mon Sep 17 00:00:00 2001
From: Kimmo Vaisanen <kimmo.vaisanen@arm.com>
Date: Wed, 20 Mar 2019 14:39:07 +0200
Subject: [PATCH] Cellular: Fix plmn trace for IAR

IAR compiler does not seem to like printing null strings.
---
 features/cellular/framework/AT/AT_CellularContext.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/features/cellular/framework/AT/AT_CellularContext.cpp b/features/cellular/framework/AT/AT_CellularContext.cpp
index 853a9e9052..a2d758dbb1 100644
--- a/features/cellular/framework/AT/AT_CellularContext.cpp
+++ b/features/cellular/framework/AT/AT_CellularContext.cpp
@@ -259,7 +259,7 @@ nsapi_error_t AT_CellularContext::set_blocking(bool blocking)
 
 void AT_CellularContext::set_plmn(const char *plmn)
 {
-    tr_info("CellularContext plmn %s", plmn);
+    tr_info("CellularContext plmn %s", (plmn ? plmn : "NULL"));
     _device->set_plmn(plmn);
 }