--- a/kernel/pf_ring.c
+++ b/kernel/pf_ring.c
@@ -3940,7 +3940,7 @@ static int hash_pkt_cluster(ring_cluster_element *cluster_ptr,
       break;
     }
     /* else, fall through, because it's like 2-tuple for non-TCP packets */
-
+    fallthrough;
   case cluster_per_flow_2_tuple:
   case cluster_per_inner_flow_2_tuple:
     flags |= mask_2_tuple;
@@ -5485,8 +5485,7 @@ static int ring_release(struct socket *sock)
     remove_cluster_referee(pfr);
 
   if((pfr->zc_device_entry != NULL)
-     && pfr->zc_device_entry->zc_dev.dev
-     && pfr->zc_device_entry->zc_dev.dev->name) {
+     && pfr->zc_device_entry->zc_dev.dev) {
     pfring_release_zc_dev(pfr);
   }
 
@@ -5617,8 +5616,6 @@ static int ring_bind(struct socket *sock, struct sockaddr *sa, int addr_len)
     return(-EINVAL);
   if(sa->sa_family != PF_RING)
     return(-EINVAL);
-  if(sa->sa_data == NULL)
-    return(-EINVAL);
 
   memcpy(name, sa->sa_data, sizeof(sa->sa_data));