1 files changed, 71 insertions, 0 deletions
diff --git a/c/src/libfs/src/dosfs/msdos_fsunmount.c b/c/src/libfs/src/dosfs/msdos_fsunmount.c
new file mode 100644
index 0000000000..9072a2fad5
--- /dev/null
+++ b/c/src/libfs/src/dosfs/msdos_fsunmount.c
@@ -0,0 +1,71 @@
+/*
+ *  MSDOS shut down handler implementation
+ *
+ *  Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
+ *  Author: Eugeny S. Mints <Eugeny.Mints@oktet.ru>
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  @(#) $Id$ 
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <assert.h>
+#include <rtems.h>
+#include <rtems/libio_.h>
+
+#include "fat.h"
+#include "fat_fat_operations.h"
+#include "fat_file.h"
+
+#include "msdos.h"
+
+/* msdos_shut_down --
+ *     Shut down MSDOS filesystem - free all allocated resources (don't 
+ *     return if deallocation of some resource failed - free as much as 
+ *     possible).
+ *
+ * PARAMETERS:
+ *     temp_mt_entry - mount table entry
+ *
+ * RETURNS:
+ *     RC_OK on success, or -1 if error occured (errno set apropriately).
+ *
+ */
+int 
+msdos_shut_down(rtems_filesystem_mount_table_entry_t *temp_mt_entry)
+{
+    int              rc = RC_OK; 
+    msdos_fs_info_t *fs_info = temp_mt_entry->fs_info;
+    fat_file_fd_t   *fat_fd = temp_mt_entry->mt_fs_root.node_access;
+
+    /* close fat-file which correspondes to root directory */
+    if (fat_file_close(temp_mt_entry, fat_fd) != RC_OK)
+    {
+        /* no return - try to free as much as possible */
+        rc = -1;
+    }
+
+    if (fat_shutdown_drive(temp_mt_entry) != RC_OK)
+    {
+        /* no return - try to free as much as possible */
+        rc = -1;
+    }
+  
+    rtems_semaphore_delete(fs_info->vol_sema);
+    free(fs_info->cl_buf);
+    free(temp_mt_entry->fs_info);
+  
+    return rc;
+}