4.104.114.84.95
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1 | /* |
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2 | * MSDOS shut down handler implementation |
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3 | * |
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4 | * Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia |
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5 | * Author: Eugeny S. Mints <Eugeny.Mints@oktet.ru> |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.com/license/LICENSE. |
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10 | * |
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11 | * @(#) $Id$ |
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12 | */ |
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13 | |
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14 | #if HAVE_CONFIG_H |
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15 | #include "config.h" |
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16 | #endif |
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17 | |
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18 | #include <sys/types.h> |
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19 | #include <fcntl.h> |
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20 | #include <unistd.h> |
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21 | #include <stdlib.h> |
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22 | #include <stdio.h> |
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23 | |
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24 | #include <assert.h> |
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25 | #include <rtems.h> |
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26 | #include <rtems/libio_.h> |
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27 | |
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28 | #include "fat.h" |
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29 | #include "fat_fat_operations.h" |
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30 | #include "fat_file.h" |
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31 | |
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32 | #include "msdos.h" |
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33 | |
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34 | /* msdos_shut_down -- |
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35 | * Shut down MSDOS filesystem - free all allocated resources (don't |
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36 | * return if deallocation of some resource failed - free as much as |
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37 | * possible). |
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38 | * |
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39 | * PARAMETERS: |
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40 | * temp_mt_entry - mount table entry |
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41 | * |
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42 | * RETURNS: |
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43 | * RC_OK on success, or -1 if error occured (errno set apropriately). |
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44 | * |
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45 | */ |
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46 | int |
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47 | msdos_shut_down(rtems_filesystem_mount_table_entry_t *temp_mt_entry) |
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48 | { |
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49 | int rc = RC_OK; |
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50 | msdos_fs_info_t *fs_info = temp_mt_entry->fs_info; |
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51 | fat_file_fd_t *fat_fd = temp_mt_entry->mt_fs_root.node_access; |
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52 | |
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53 | /* close fat-file which correspondes to root directory */ |
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54 | if (fat_file_close(temp_mt_entry, fat_fd) != RC_OK) |
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55 | { |
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56 | /* no return - try to free as much as possible */ |
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57 | rc = -1; |
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58 | } |
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59 | |
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60 | if (fat_shutdown_drive(temp_mt_entry) != RC_OK) |
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61 | { |
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62 | /* no return - try to free as much as possible */ |
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63 | rc = -1; |
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64 | } |
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65 | |
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66 | rtems_semaphore_delete(fs_info->vol_sema); |
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67 | free(fs_info->cl_buf); |
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68 | free(temp_mt_entry->fs_info); |
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69 | |
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70 | return rc; |
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71 | } |
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