--- trousers	2018-04-13 13:35:48.693276325 +0700
+++ /etc/init.d/trousers	2016-11-20 22:10:31.000000000 +0700
@@ -29,7 +29,7 @@
 	start)
 		log_daemon_msg "Starting $DESC" "$NAME"
 
-		if ! ls /dev/tpm* 1> /dev/null
+		if [ ! -e /dev/tpm* ]
 		then
 			log_warning_msg "device driver not loaded, skipping."
 			exit 0