From baef823cd550449bfbcc36625b9571389d8ad1af Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Wed, 13 Sep 2017 09:22:19 +0200
Subject: libio: Add hold/drop iop reference

Check iop reference count in close() and return -1 with errno set to
EBUSY in case the file descriptor is still in use.

Update #3132.
---
 cpukit/libcsupport/src/write.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'cpukit/libcsupport/src/write.c')

diff --git a/cpukit/libcsupport/src/write.c b/cpukit/libcsupport/src/write.c
index f44962afd8..a90b291ed8 100644
--- a/cpukit/libcsupport/src/write.c
+++ b/cpukit/libcsupport/src/write.c
@@ -34,6 +34,7 @@ ssize_t write(
 )
 {
   rtems_libio_t *iop;
+  ssize_t        n;
 
   rtems_libio_check_buffer( buffer );
   rtems_libio_check_count( count );
@@ -43,5 +44,7 @@ ssize_t write(
   /*
    *  Now process the write() request.
    */
-  return (*iop->pathinfo.handlers->write_h)( iop, buffer, count );
+  n = (*iop->pathinfo.handlers->write_h)( iop, buffer, count );
+  rtems_libio_iop_drop( iop );
+  return n;
 }
-- 
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