Index: usr.bin/tset/map.c
===================================================================
--- usr.bin/tset/map.c
+++ usr.bin/tset/map.c
@@ -76,9 +76,13 @@
 	char *copy, *p, *termp;
 
 	copy = strdup(arg);
+	if (copy == NULL)
+		errx(1, "malloc");
 	mapp = malloc(sizeof(MAP));
-	if (copy == NULL || mapp == NULL)
+	if (mapp == NULL) {
+		free(copy);
 		errx(1, "malloc");
+	}
 	mapp->next = NULL;
 	if (maplist == NULL)
 		cur = maplist = mapp;
@@ -153,6 +157,7 @@
 
 	/* If user specified a port with an option flag, set it. */
 done:	if (port) {
+		/* XXX no way to free 'copy' */
 		if (mapp->porttype)
 badmopt:		errx(1, "illegal -m option format: %s", copy);
 		mapp->porttype = strdup(port);
@@ -175,6 +180,7 @@
 		(void)printf("%sLT", p);
 	(void)printf("\nspeed: %d\n", mapp->speed);
 #endif
+	free(copy);
 }
 
 /*