Cellular: Fix plmn trace for IAR

Kimmo Vaisanen · Kimmo Vaisanen · commit 06caa0ff143b · 2019-03-20T14:39:07.000+02:00
IAR compiler does not seem to like printing null strings.
diff --git 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);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -259,7 +259,7 @@ nsapi_error_t AT_CellularContext::set_blocking(bool blocking)`
`259`	`259`
`260`	`260`	`void AT_CellularContext::set_plmn(const char *plmn)`
`261`	`261`	`{`
`262`		`- tr_info("CellularContext plmn %s", plmn);`
	`262`	`+ tr_info("CellularContext plmn %s", (plmn ? plmn : "NULL"));`
`263`	`263`	`_device->set_plmn(plmn);`
`264`	`264`	`}`
`265`	`265`