diff --git a/drivers/hfpmodem/voicecall.c b/drivers/hfpmodem/voicecall.c
index f8db584c..ffdf4b7b 100644
--- a/drivers/hfpmodem/voicecall.c
+++ b/drivers/hfpmodem/voicecall.c
@@ -286,8 +286,7 @@ static void clcc_poll_cb(gboolean ok, GAtResult *result, gpointer user_data)
 
 	ofono_voicecall_mpty_hint(vc, mpty_ids);
 
-	g_slist_foreach(vd->calls, (GFunc) g_free, NULL);
-	g_slist_free(vd->calls);
+	g_slist_free_full(vd->calls, g_free);
 
 	vd->calls = calls;
 
@@ -1256,8 +1255,7 @@ static void hfp_voicecall_remove(struct ofono_voicecall *vc)
 	if (vd->expect_release_source)
 		g_source_remove(vd->expect_release_source);
 
-	g_slist_foreach(vd->calls, (GFunc) g_free, NULL);
-	g_slist_free(vd->calls);
+	g_slist_free_full(vd->calls, g_free);
 
 	ofono_voicecall_set_data(vc, NULL);