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/*

 *  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.

 *

 *  @(#) msdos_fsunmount.c,v 1.1 2002/02/28 20:43:50 joel Exp

 */

#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;

}