Use busybox error handling functions wherever possible.
diff --git a/coreutils/mkfifo.c b/coreutils/mkfifo.c
index ef4a525..728e1ec 100644
--- a/coreutils/mkfifo.c
+++ b/coreutils/mkfifo.c
@@ -53,9 +53,7 @@
 	}
 	if (argc < 1 || *argv[0] == '-')
 		usage(mkfifo_usage);
-	if (mkfifo(*argv, mode) < 0) {
-		perror("mkfifo");
-		return EXIT_FAILURE;
-	}
+	if (mkfifo(*argv, mode) < 0)
+		perror_msg_and_die("mkfifo");
 	return EXIT_SUCCESS;
 }