lib/net/ssh/kerberos/context.rb in net-ssh-kerberos-0.2.6 vs lib/net/ssh/kerberos/context.rb in net-ssh-kerberos-0.2.7

@@ -24,10 +24,10 @@
 	
 	      z = (user.include?('@') ? user.gsub('@','/') : user+'/')
 	      @credentials = creds
 	    ensure
 	      if @credentials.nil?
-	        release_credentials creds
+	        release_credentials creds unless creds.nil?
 	        @cred_name = @cred_krb_name = nil
 	      end
 	    end
 	
 	    @server_name = Socket.gethostbyname(host)[0]