diff --git a/crypto/cryptodev.c b/crypto/cryptodev.c
index d8c10dd0f4e..ea63a2253af 100644
--- a/crypto/cryptodev.c
+++ b/crypto/cryptodev.c
@@ -872,8 +872,6 @@ static int cryptof_close(FAR struct file *filep)
 {
   FAR struct fcrypt *fcr = filep->f_priv;
   FAR struct csession *cse;
-  FAR struct cryptkop *krp;
-  int i;
 
   while ((cse = TAILQ_FIRST(&fcr->csessions)))
     {
@@ -881,22 +879,6 @@ static int cryptof_close(FAR struct file *filep)
       (void)csefree(cse);
     }
 
-  while ((krp = TAILQ_FIRST(&fcr->crpk_ret)))
-    {
-      TAILQ_REMOVE(&fcr->crpk_ret, krp, krp_next);
-      for (i = 0; i < CRK_MAXPARAM; i++)
-        {
-          if (krp->krp_param[i].crp_p)
-            {
-              explicit_bzero(krp->krp_param[i].crp_p,
-                  (krp->krp_param[i].crp_nbits + 7) / 8);
-              kmm_free(krp->krp_param[i].crp_p);
-            }
-        }
-
-      kmm_free(krp);
-    }
-
   kmm_free(fcr);
   filep->f_priv = NULL;
   return 0;