diff --git a/pjsip/src/pjsip/sip_transport.c b/pjsip/src/pjsip/sip_transport.c
index 9ced7988c..2f6db3885 100644
--- a/pjsip/src/pjsip/sip_transport.c
+++ b/pjsip/src/pjsip/sip_transport.c
@@ -475,13 +475,12 @@ static char *get_msg_info(pj_pool_t *pool, const char *obj_name,
 
 PJ_DEF(char*) pjsip_tx_data_get_info( pjsip_tx_data *tdata )
 {
+    if (tdata==NULL || tdata->msg==NULL)
+	return "NULL";
 
     if (tdata->info)
 	return tdata->info;
 
-    if (tdata==NULL || tdata->msg==NULL)
-	return "NULL";
-
     pj_lock_acquire(tdata->lock);
     tdata->info = get_msg_info(tdata->pool, tdata->obj_name, tdata->msg);
     pj_lock_release(tdata->lock);