diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 2362c282ec8b36f7e56bdcf7b3594fcaa19551b9..1accc815729b0a60a080c4305b180026be151510 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1060,15 +1060,20 @@ static int soc_tplg_dapm_graph_elems_load(struct soc_tplg *tplg,
 			break;
 		}
 
-		route->source = elem->source;
-		route->sink = elem->sink;
+		route->source = devm_kstrdup(tplg->dev, elem->source, GFP_KERNEL);
+		route->sink = devm_kstrdup(tplg->dev, elem->sink, GFP_KERNEL);
+		if (!route->source || !route->sink) {
+			ret = -ENOMEM;
+			break;
+		}
 
-		/* set to NULL atm for tplg users */
-		route->connected = NULL;
-		if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == 0)
-			route->control = NULL;
-		else
-			route->control = elem->control;
+		if (strnlen(elem->control, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) != 0) {
+			route->control = devm_kstrdup(tplg->dev, elem->control, GFP_KERNEL);
+			if (!route->control) {
+				ret = -ENOMEM;
+				break;
+			}
+		}
 
 		/* add route dobj to dobj_list */
 		route->dobj.type = SND_SOC_DOBJ_GRAPH;