diff -up ./rngd.c.orig ./rngd.c

--- ./rngd.c.orig	2017-10-27 14:18:52.617286574 -0400

+++ ./rngd.c	2017-10-27 14:19:34.189456107 -0400

@@ -423,12 +423,15 @@ int main(int argc, char **argv)

 	}

 	if (arguments->list) {

+		int rc = 1;

 		msg_squash = false;

 		printf("Available entropy sources:\n");

 		for (i=0; i < ENT_MAX; i++) 

-			if (entropy_sources[i].init && entropy_sources[i].disabled == false)

+			if (entropy_sources[i].init && entropy_sources[i].disabled == false) {

+				rc = 0;

 				printf("%d: %s\n", i, entropy_sources[i].rng_name);

-		return 1;

+			}

+		return rc;

 	}

 	if (!ent_sources) {