The variable 's' is set but unused in ax25_protocol_release().
Just kill it off.
Signed-off-by: David S. Miller <davem@davemloft.net>
 
 void ax25_protocol_release(unsigned int pid)
 {
-       struct ax25_protocol *s, *protocol;
+       struct ax25_protocol *protocol;
 
        write_lock_bh(&protocol_list_lock);
        protocol = protocol_list;
 
        while (protocol != NULL && protocol->next != NULL) {
                if (protocol->next->pid == pid) {
-                       s = protocol->next;
                        protocol->next = protocol->next->next;
                        goto out;
                }