[rtems commit] psxrdwrv/test.c: Clear iovec to ensure consistent results

[Joel Sherrill]

Module:    rtems
Branch:    master
Commit:    714cb06f18ce2c0df265ada06363d71560f14a3e
Changeset: http://git.rtems.org/rtems/commit/?id=714cb06f18ce2c0df265ada06363d71560f14a3e

Author:    Joel Sherrill <joel at rtems.org>
Date:      Thu Sep 21 10:16:41 2017 -0500

psxrdwrv/test.c: Clear iovec to ensure consistent results

closes #3148.

---

 testsuites/psxtests/psxrdwrv/test.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/testsuites/psxtests/psxrdwrv/test.c b/testsuites/psxtests/psxrdwrv/test.c
index d3adf14..d9582d8 100644
--- a/testsuites/psxtests/psxrdwrv/test.c
+++ b/testsuites/psxtests/psxrdwrv/test.c
@@ -194,6 +194,9 @@ int doErrorTest(void)
   fd = fileno(fp);
   fclose(fp);
 
+  /* clear out the vector to ensure it is valid */
+  memset(vec, 0, sizeof(vec));
+
   /* writev -- bad file descriptor */
   puts("writev bad file descriptor -- EBADF");
   rc = writev(fd, vec, 4);