From 552d3c4712734bad7553cc49f6f1e298548e5f05 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Fri, 15 Jul 2016 14:09:14 -0600
Subject: [PATCH] PTY: Fix a few errors from early testing

---
 examples/pty_test/Kconfig    |  2 ++
 examples/pty_test/pty_test.c | 20 +++++++++++---------
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/examples/pty_test/Kconfig b/examples/pty_test/Kconfig
index 69eb790e6..6a84d6309 100644
--- a/examples/pty_test/Kconfig
+++ b/examples/pty_test/Kconfig
@@ -6,6 +6,8 @@
 config EXAMPLES_PTYTEST
 	bool "Pseudo Terminal test example"
 	default n
+	depends on PSEUDOTERM
+	select PSEUDOTERM_SUSV1
 	---help---
 		Enable the PTY example
 
diff --git a/examples/pty_test/pty_test.c b/examples/pty_test/pty_test.c
index 087cfc977..0e7788d0e 100644
--- a/examples/pty_test/pty_test.c
+++ b/examples/pty_test/pty_test.c
@@ -71,18 +71,18 @@ int pty_test_main(int argc, char *argv[])
   /* Grant access and unlock the slave device */
 
   ret = grantpt(fd);
-  if (fd < 0)
+  if (ret < 0)
     {
       fprintf(stderr, "ERROR: grantpt() failed: %d\n", errno);
-      fclose(fd);
+      close(fd);
       return -1;
     }
 
   ret = unlockpt(fd);
-  if (fd < 0)
+  if (ret < 0)
     {
       fprintf(stderr, "ERROR: unlockpt() failed: %d\n", errno);
-      fclose(fd);
+      close(fd);
       return -1;
     }
 
@@ -95,12 +95,14 @@ int pty_test_main(int argc, char *argv[])
 
   for (; ; )
     {
-      char buffer;
-      int in;
+      ssize_t nread;
+      char ch;
 
-      in = read(fd, &buffer, 1);
-      putchar(buffer);
-      buffer = '\0';
+      nread = read(fd, &ch, 1);
+      UNUSED(nread);
+
+      putchar(ch);
+      ch = '\0';
     }
 
   return 0;