1 |
|
|
/*************************************************************************** |
2 |
|
|
* Copyright (c) 2024 Microsoft Corporation |
3 |
|
|
* |
4 |
|
|
* This program and the accompanying materials are made available under the |
5 |
|
|
* terms of the MIT License which is available at |
6 |
|
|
* https://opensource.org/licenses/MIT. |
7 |
|
|
* |
8 |
|
|
* SPDX-License-Identifier: MIT |
9 |
|
|
**************************************************************************/ |
10 |
|
|
|
11 |
|
|
|
12 |
|
|
/**************************************************************************/ |
13 |
|
|
/**************************************************************************/ |
14 |
|
|
/** */ |
15 |
|
|
/** FileX Component */ |
16 |
|
|
/** */ |
17 |
|
|
/** Media */ |
18 |
|
|
/** */ |
19 |
|
|
/**************************************************************************/ |
20 |
|
|
/**************************************************************************/ |
21 |
|
|
|
22 |
|
|
#define FX_SOURCE_CODE |
23 |
|
|
|
24 |
|
|
|
25 |
|
|
/* Include necessary system files. */ |
26 |
|
|
|
27 |
|
|
#include "fx_api.h" |
28 |
|
|
#include "fx_system.h" |
29 |
|
|
#include "fx_media.h" |
30 |
|
|
#include "fx_file.h" |
31 |
|
|
#include "fx_directory.h" |
32 |
|
|
#include "fx_utility.h" |
33 |
|
|
|
34 |
|
|
|
35 |
|
|
/**************************************************************************/ |
36 |
|
|
/* */ |
37 |
|
|
/* FUNCTION RELEASE */ |
38 |
|
|
/* */ |
39 |
|
|
/* _fx_media_close PORTABLE C */ |
40 |
|
|
/* 6.1 */ |
41 |
|
|
/* AUTHOR */ |
42 |
|
|
/* */ |
43 |
|
|
/* William E. Lamie, Microsoft Corporation */ |
44 |
|
|
/* */ |
45 |
|
|
/* DESCRIPTION */ |
46 |
|
|
/* */ |
47 |
|
|
/* This function examines the list of open files for this media and */ |
48 |
|
|
/* closes each file. If a file has been written to, the file's */ |
49 |
|
|
/* directory information is also written out to the media. After */ |
50 |
|
|
/* the files have been closed, the internal logical sector is */ |
51 |
|
|
/* flushed and a flush command is sent to the attached driver. */ |
52 |
|
|
/* Finally, this media control block is removed from the list of */ |
53 |
|
|
/* opened media control blocks and is marked as closed. */ |
54 |
|
|
/* */ |
55 |
|
|
/* INPUT */ |
56 |
|
|
/* */ |
57 |
|
|
/* media_ptr Media control block pointer */ |
58 |
|
|
/* */ |
59 |
|
|
/* OUTPUT */ |
60 |
|
|
/* */ |
61 |
|
|
/* return status */ |
62 |
|
|
/* */ |
63 |
|
|
/* CALLS */ |
64 |
|
|
/* */ |
65 |
|
|
/* _fx_directory_entry_write Write the directory entry */ |
66 |
|
|
/* _fx_media_abort Abort the media on error */ |
67 |
|
|
/* _fx_utility_FAT_flush Flush cached FAT entries */ |
68 |
|
|
/* _fx_utility_FAT_map_flush Flush primary FAT changes to */ |
69 |
|
|
/* secondary FAT(s) */ |
70 |
|
|
/* _fx_utility_logical_sector_flush Flush logical sector cache */ |
71 |
|
|
/* _fx_utility_16_unsigned_read Read a 16-bit value */ |
72 |
|
|
/* _fx_utility_32_unsigned_read Read a 32-bit value */ |
73 |
|
|
/* _fx_utility_32_unsigned_write Write a 32-bit value */ |
74 |
|
|
/* tx_mutex_delete Delete protection mutex */ |
75 |
|
|
/* */ |
76 |
|
|
/* CALLED BY */ |
77 |
|
|
/* */ |
78 |
|
|
/* Application Code */ |
79 |
|
|
/* */ |
80 |
|
|
/* RELEASE HISTORY */ |
81 |
|
|
/* */ |
82 |
|
|
/* DATE NAME DESCRIPTION */ |
83 |
|
|
/* */ |
84 |
|
|
/* 05-19-2020 William E. Lamie Initial Version 6.0 */ |
85 |
|
|
/* 09-30-2020 William E. Lamie Modified comment(s), and */ |
86 |
|
|
/* added conditional to */ |
87 |
|
|
/* disable file close */ |
88 |
|
|
/* and cache, */ |
89 |
|
|
/* resulting in version 6.1 */ |
90 |
|
|
/* */ |
91 |
|
|
/**************************************************************************/ |
92 |
|
5223 |
UINT _fx_media_close(FX_MEDIA *media_ptr) |
93 |
|
|
{ |
94 |
|
|
|
95 |
|
|
FX_INT_SAVE_AREA |
96 |
|
|
|
97 |
|
|
#ifndef FX_DISABLE_FILE_CLOSE |
98 |
|
|
ULONG open_count; |
99 |
|
|
FX_FILE *file_ptr; |
100 |
|
|
#endif /* FX_DISABLE_FILE_CLOSE */ |
101 |
|
|
UINT status; |
102 |
|
|
|
103 |
|
|
|
104 |
|
|
/* Check the media to make sure it is open. */ |
105 |
✓✓ |
5223 |
if (media_ptr -> fx_media_id != FX_MEDIA_ID) |
106 |
|
|
{ |
107 |
|
|
|
108 |
|
|
/* Return the media not opened error. */ |
109 |
|
1601 |
return(FX_MEDIA_NOT_OPEN); |
110 |
|
|
} |
111 |
|
|
|
112 |
|
|
/* If trace is enabled, insert this event into the trace buffer. */ |
113 |
|
|
FX_TRACE_IN_LINE_INSERT(FX_TRACE_MEDIA_CLOSE, media_ptr, 0, 0, 0, FX_TRACE_MEDIA_EVENTS, 0, 0) |
114 |
|
|
|
115 |
|
|
/* If trace is enabled, unregister this object. */ |
116 |
|
|
FX_TRACE_OBJECT_UNREGISTER(media_ptr) |
117 |
|
|
|
118 |
|
|
/* Protect against other threads accessing the media. */ |
119 |
|
3622 |
FX_PROTECT |
120 |
|
|
|
121 |
|
|
#ifndef FX_DISABLE_FILE_CLOSE |
122 |
|
|
/* Loop through the media's open files. */ |
123 |
|
3622 |
open_count = media_ptr -> fx_media_opened_file_count; |
124 |
|
3622 |
file_ptr = media_ptr -> fx_media_opened_file_list; |
125 |
✓✓ |
15664 |
while (open_count) |
126 |
|
|
{ |
127 |
|
|
|
128 |
|
|
/* Look at each opened file to see if the same file is opened |
129 |
|
|
for writing and has been written to. */ |
130 |
✓✓ |
12043 |
if ((file_ptr -> fx_file_open_mode == FX_OPEN_FOR_WRITE) && |
131 |
✓✓ |
11038 |
(file_ptr -> fx_file_modified)) |
132 |
|
|
{ |
133 |
|
|
|
134 |
|
|
/* Lockout interrupts for time/date access. */ |
135 |
|
8 |
FX_DISABLE_INTS |
136 |
|
|
|
137 |
|
|
/* Set the new time and date. */ |
138 |
|
8 |
file_ptr -> fx_file_dir_entry.fx_dir_entry_time = _fx_system_time; |
139 |
|
8 |
file_ptr -> fx_file_dir_entry.fx_dir_entry_date = _fx_system_date; |
140 |
|
|
|
141 |
|
|
/* Restore interrupt posture. */ |
142 |
|
8 |
FX_RESTORE_INTS |
143 |
|
|
|
144 |
|
|
/* Copy the new file size into the directory entry. */ |
145 |
|
8 |
file_ptr -> fx_file_dir_entry.fx_dir_entry_file_size = |
146 |
|
8 |
file_ptr -> fx_file_current_file_size; |
147 |
|
|
|
148 |
|
|
/* Write the directory entry to the media. */ |
149 |
|
8 |
status = _fx_directory_entry_write(media_ptr, &(file_ptr -> fx_file_dir_entry)); |
150 |
|
|
|
151 |
|
|
/* Determine if the status was unsuccessful. */ |
152 |
✓✓ |
8 |
if (status != FX_SUCCESS) |
153 |
|
|
{ |
154 |
|
|
|
155 |
|
|
/* Release media protection. */ |
156 |
|
1 |
FX_UNPROTECT |
157 |
|
|
|
158 |
|
|
/* Call the media abort routine. */ |
159 |
|
1 |
_fx_media_abort(media_ptr); |
160 |
|
|
|
161 |
|
|
/* Return the error status. */ |
162 |
|
1 |
return(FX_IO_ERROR); |
163 |
|
|
} |
164 |
|
|
|
165 |
|
|
/* Clear the file modified flag. */ |
166 |
|
7 |
file_ptr -> fx_file_modified = FX_FALSE; |
167 |
|
|
} |
168 |
|
|
|
169 |
|
|
/* Mark the file as closed. */ |
170 |
|
12042 |
file_ptr -> fx_file_id = FX_FILE_CLOSED_ID; |
171 |
|
|
|
172 |
|
|
/* Adjust the pointer and decrement the opened count. */ |
173 |
|
12042 |
file_ptr = file_ptr -> fx_file_opened_next; |
174 |
|
12042 |
open_count--; |
175 |
|
|
} |
176 |
|
|
#endif /* FX_DISABLE_FILE_CLOSE */ |
177 |
|
|
|
178 |
|
|
/* Flush the cached individual FAT entries */ |
179 |
|
3621 |
_fx_utility_FAT_flush(media_ptr); |
180 |
|
|
|
181 |
|
|
/* Flush changed sector(s) in the primary FAT to secondary FATs. */ |
182 |
|
3621 |
_fx_utility_FAT_map_flush(media_ptr); |
183 |
|
|
|
184 |
|
|
|
185 |
|
|
/* Flush the internal logical sector cache. */ |
186 |
|
3621 |
status = _fx_utility_logical_sector_flush(media_ptr, ((ULONG64) 1), (ULONG64) (media_ptr -> fx_media_total_sectors), FX_FALSE); |
187 |
|
|
|
188 |
|
|
/* Determine if the flush was unsuccessful. */ |
189 |
✓✓ |
3621 |
if (status != FX_SUCCESS) |
190 |
|
|
{ |
191 |
|
|
|
192 |
|
|
/* Release media protection. */ |
193 |
|
1 |
FX_UNPROTECT |
194 |
|
|
|
195 |
|
|
/* Call the media abort routine. */ |
196 |
|
1 |
_fx_media_abort(media_ptr); |
197 |
|
|
|
198 |
|
|
/* Return the error status. */ |
199 |
|
1 |
return(FX_IO_ERROR); |
200 |
|
|
} |
201 |
|
|
|
202 |
|
|
/* Determine if the media needs to have the additional information sector updated. This will |
203 |
|
|
only be the case for 32-bit FATs. The logic here only needs to be done if the last reported |
204 |
|
|
available cluster count is different that the currently available clusters. */ |
205 |
✓✓ |
3620 |
if ((media_ptr -> fx_media_FAT32_additional_info_sector) && |
206 |
✓✓ |
3029 |
(media_ptr -> fx_media_FAT32_additional_info_last_available != media_ptr -> fx_media_available_clusters) && |
207 |
✓✓ |
1010 |
(media_ptr -> fx_media_driver_write_protect == FX_FALSE)) |
208 |
|
|
{ |
209 |
|
|
|
210 |
|
|
UCHAR *buffer_ptr; |
211 |
|
|
ULONG signature; |
212 |
|
|
|
213 |
|
|
|
214 |
|
|
#ifndef FX_DISABLE_CACHE |
215 |
|
|
/* Setup a pointer to the first cached entry's buffer. */ |
216 |
|
1009 |
buffer_ptr = (media_ptr -> fx_media_sector_cache_list_ptr) -> fx_cached_sector_memory_buffer; |
217 |
|
|
|
218 |
|
|
/* Invalidate this cache entry. */ |
219 |
|
1009 |
(media_ptr -> fx_media_sector_cache_list_ptr) -> fx_cached_sector = (~(ULONG64)0); |
220 |
|
1009 |
(media_ptr -> fx_media_sector_cache_list_ptr) -> fx_cached_sector_valid = FX_FALSE; |
221 |
|
|
#else |
222 |
|
|
buffer_ptr = media_ptr -> fx_media_memory_buffer; |
223 |
|
|
#endif /* FX_DISABLE_CACHE */ |
224 |
|
|
|
225 |
|
|
/* Read the FAT32 additional information sector from the device. */ |
226 |
|
1009 |
media_ptr -> fx_media_driver_request = FX_DRIVER_READ; |
227 |
|
1009 |
media_ptr -> fx_media_driver_status = FX_IO_ERROR; |
228 |
|
1009 |
media_ptr -> fx_media_driver_buffer = buffer_ptr; |
229 |
|
1009 |
media_ptr -> fx_media_driver_logical_sector = media_ptr -> fx_media_FAT32_additional_info_sector; |
230 |
|
1009 |
media_ptr -> fx_media_driver_sectors = 1; |
231 |
|
1009 |
media_ptr -> fx_media_driver_sector_type = FX_DIRECTORY_SECTOR; |
232 |
|
|
|
233 |
|
|
#ifndef FX_MEDIA_STATISTICS_DISABLE |
234 |
|
|
|
235 |
|
|
/* Increment the number of driver read sector(s) requests. */ |
236 |
|
1009 |
media_ptr -> fx_media_driver_read_requests++; |
237 |
|
|
#endif |
238 |
|
|
|
239 |
|
|
/* If trace is enabled, insert this event into the trace buffer. */ |
240 |
|
|
FX_TRACE_IN_LINE_INSERT(FX_TRACE_INTERNAL_IO_DRIVER_READ, media_ptr, media_ptr -> fx_media_FAT32_additional_info_sector, 1, buffer_ptr, FX_TRACE_INTERNAL_EVENTS, 0, 0) |
241 |
|
|
|
242 |
|
|
/* Invoke the driver to read the FAT32 additional information sector. */ |
243 |
|
1009 |
(media_ptr -> fx_media_driver_entry) (media_ptr); |
244 |
|
|
|
245 |
|
|
/* Determine if the FAT32 sector was read correctly. */ |
246 |
✓✓ |
1009 |
if (media_ptr -> fx_media_driver_status != FX_SUCCESS) |
247 |
|
|
{ |
248 |
|
|
|
249 |
|
|
/* Release media protection. */ |
250 |
|
228 |
FX_UNPROTECT |
251 |
|
|
|
252 |
|
|
/* Call the media abort routine. */ |
253 |
|
228 |
_fx_media_abort(media_ptr); |
254 |
|
|
|
255 |
|
|
/* Return the error status. */ |
256 |
|
228 |
return(FX_IO_ERROR); |
257 |
|
|
} |
258 |
|
|
|
259 |
|
|
/* Setup a pointer into the FAT32 additional information sector. */ |
260 |
|
781 |
buffer_ptr = media_ptr -> fx_media_driver_buffer; |
261 |
|
|
|
262 |
|
|
/* Pickup the first signature long word. */ |
263 |
|
781 |
signature = _fx_utility_32_unsigned_read(&buffer_ptr[0]); |
264 |
|
|
|
265 |
|
|
/* Determine if the signature is correct. */ |
266 |
✓✓ |
781 |
if (signature == 0x41615252) |
267 |
|
|
{ |
268 |
|
|
|
269 |
|
|
/* Yes, the first signature is correct, now pickup the next signature. */ |
270 |
|
780 |
signature = _fx_utility_32_unsigned_read(&buffer_ptr[484]); |
271 |
|
|
|
272 |
|
|
/* Determine if this signature is correct. */ |
273 |
✓✓ |
780 |
if (signature == 0x61417272) |
274 |
|
|
{ |
275 |
|
|
|
276 |
|
|
/* Yes, we have a good FAT32 additional information sector. */ |
277 |
|
|
|
278 |
|
|
/* Set the free cluster count to the available clusters in the media control block. */ |
279 |
|
779 |
_fx_utility_32_unsigned_write(&buffer_ptr[488], media_ptr -> fx_media_available_clusters); |
280 |
|
|
|
281 |
|
|
/* Set the next free cluster number hint to starting search cluster in the media control block. */ |
282 |
|
779 |
_fx_utility_32_unsigned_write(&buffer_ptr[492], media_ptr -> fx_media_cluster_search_start); |
283 |
|
|
|
284 |
|
|
/* Now write the sector back out to the media. */ |
285 |
|
779 |
media_ptr -> fx_media_driver_request = FX_DRIVER_WRITE; |
286 |
|
779 |
media_ptr -> fx_media_driver_status = FX_IO_ERROR; |
287 |
|
779 |
media_ptr -> fx_media_driver_buffer = buffer_ptr; |
288 |
|
779 |
media_ptr -> fx_media_driver_logical_sector = media_ptr -> fx_media_FAT32_additional_info_sector; |
289 |
|
779 |
media_ptr -> fx_media_driver_sectors = 1; |
290 |
|
779 |
media_ptr -> fx_media_driver_sector_type = FX_DIRECTORY_SECTOR; |
291 |
|
|
|
292 |
|
|
/* Set the system write flag since we are writing a directory sector. */ |
293 |
|
779 |
media_ptr -> fx_media_driver_system_write = FX_TRUE; |
294 |
|
|
|
295 |
|
|
#ifndef FX_MEDIA_STATISTICS_DISABLE |
296 |
|
|
|
297 |
|
|
/* Increment the number of driver write sector(s) requests. */ |
298 |
|
779 |
media_ptr -> fx_media_driver_write_requests++; |
299 |
|
|
#endif |
300 |
|
|
|
301 |
|
|
/* If trace is enabled, insert this event into the trace buffer. */ |
302 |
|
|
FX_TRACE_IN_LINE_INSERT(FX_TRACE_INTERNAL_IO_DRIVER_WRITE, media_ptr, media_ptr -> fx_media_FAT32_additional_info_sector, 1, buffer_ptr, FX_TRACE_INTERNAL_EVENTS, 0, 0) |
303 |
|
|
|
304 |
|
|
/* Invoke the driver to write the FAT32 additional information sector. */ |
305 |
|
779 |
(media_ptr -> fx_media_driver_entry) (media_ptr); |
306 |
|
|
|
307 |
|
|
/* Clear the system write flag. */ |
308 |
|
779 |
media_ptr -> fx_media_driver_system_write = FX_FALSE; |
309 |
|
|
|
310 |
|
|
/* Determine if the FAT32 sector was written correctly. */ |
311 |
✓✓ |
779 |
if (media_ptr -> fx_media_driver_status != FX_SUCCESS) |
312 |
|
|
{ |
313 |
|
|
|
314 |
|
|
/* Release media protection. */ |
315 |
|
95 |
FX_UNPROTECT |
316 |
|
|
|
317 |
|
|
/* Call the media abort routine. */ |
318 |
|
95 |
_fx_media_abort(media_ptr); |
319 |
|
|
|
320 |
|
|
/* Return the sector IO error status. */ |
321 |
|
95 |
return(FX_IO_ERROR); |
322 |
|
|
} |
323 |
|
|
|
324 |
|
|
/* Successful update of the FAT32 additional information sector. Update the |
325 |
|
|
last written available cluster count. */ |
326 |
|
684 |
media_ptr -> fx_media_FAT32_additional_info_last_available = media_ptr -> fx_media_available_clusters; |
327 |
|
|
} |
328 |
|
|
} |
329 |
|
|
} |
330 |
|
|
|
331 |
|
|
#ifndef FX_MEDIA_STATISTICS_DISABLE |
332 |
|
|
|
333 |
|
|
/* Increment the number of driver flush requests. */ |
334 |
|
3297 |
media_ptr -> fx_media_driver_flush_requests++; |
335 |
|
|
#endif |
336 |
|
|
|
337 |
|
|
/* Build the "flush" I/O driver request. */ |
338 |
|
3297 |
media_ptr -> fx_media_driver_request = FX_DRIVER_FLUSH; |
339 |
|
3297 |
media_ptr -> fx_media_driver_status = FX_IO_ERROR; |
340 |
|
|
|
341 |
|
|
/* If trace is enabled, insert this event into the trace buffer. */ |
342 |
|
|
FX_TRACE_IN_LINE_INSERT(FX_TRACE_INTERNAL_IO_DRIVER_FLUSH, media_ptr, 0, 0, 0, FX_TRACE_INTERNAL_EVENTS, 0, 0) |
343 |
|
|
|
344 |
|
|
/* Call the specified I/O driver with the flush request. */ |
345 |
|
3297 |
(media_ptr -> fx_media_driver_entry) (media_ptr); |
346 |
|
|
|
347 |
|
|
/* Build the "uninitialize" I/O driver request. */ |
348 |
|
3297 |
media_ptr -> fx_media_driver_request = FX_DRIVER_UNINIT; |
349 |
|
3297 |
media_ptr -> fx_media_driver_status = FX_IO_ERROR; |
350 |
|
|
|
351 |
|
|
/* If trace is enabled, insert this event into the trace buffer. */ |
352 |
|
|
FX_TRACE_IN_LINE_INSERT(FX_TRACE_INTERNAL_IO_DRIVER_UNINIT, media_ptr, 0, 0, 0, FX_TRACE_INTERNAL_EVENTS, 0, 0) |
353 |
|
|
|
354 |
|
|
/* Call the specified I/O driver with the uninitialize request. */ |
355 |
|
3297 |
(media_ptr -> fx_media_driver_entry) (media_ptr); |
356 |
|
|
|
357 |
|
|
/* Now remove this media from the open list. */ |
358 |
|
|
|
359 |
|
|
/* Lockout interrupts for media removal. */ |
360 |
|
3297 |
FX_DISABLE_INTS |
361 |
|
|
|
362 |
|
|
/* See if the media is the only one on the media opened list. */ |
363 |
✓✓ |
3297 |
if (_fx_system_media_opened_count == ((ULONG) 1)) |
364 |
|
|
{ |
365 |
|
|
|
366 |
|
|
/* Only opened media, just set the opened list to NULL. */ |
367 |
|
3294 |
_fx_system_media_opened_ptr = FX_NULL; |
368 |
|
|
} |
369 |
|
|
else |
370 |
|
|
{ |
371 |
|
|
|
372 |
|
|
/* Otherwise, not the only opened media, link-up the neighbors. */ |
373 |
|
3 |
(media_ptr -> fx_media_opened_next) -> fx_media_opened_previous = |
374 |
|
3 |
media_ptr -> fx_media_opened_previous; |
375 |
|
3 |
(media_ptr -> fx_media_opened_previous) -> fx_media_opened_next = |
376 |
|
3 |
media_ptr -> fx_media_opened_next; |
377 |
|
|
|
378 |
|
|
/* See if we have to update the opened list head pointer. */ |
379 |
✓✓ |
3 |
if (_fx_system_media_opened_ptr == media_ptr) |
380 |
|
|
{ |
381 |
|
|
|
382 |
|
|
/* Yes, move the head pointer to the next opened media. */ |
383 |
|
2 |
_fx_system_media_opened_ptr = media_ptr -> fx_media_opened_next; |
384 |
|
|
} |
385 |
|
|
} |
386 |
|
|
|
387 |
|
|
/* Decrement the opened media counter. */ |
388 |
|
3297 |
_fx_system_media_opened_count--; |
389 |
|
|
|
390 |
|
|
/* Finally, Indicate that this media is closed. */ |
391 |
|
3297 |
media_ptr -> fx_media_id = FX_MEDIA_CLOSED_ID; |
392 |
|
|
|
393 |
|
|
/* Restore interrupt posture. */ |
394 |
|
3297 |
FX_RESTORE_INTS |
395 |
|
|
|
396 |
|
|
/* Delete the media protection structure if FX_SINGLE_THREAD is not |
397 |
|
|
defined. */ |
398 |
|
|
#ifndef FX_SINGLE_THREAD |
399 |
|
|
|
400 |
|
|
#ifndef FX_DONT_CREATE_MUTEX |
401 |
|
|
|
402 |
|
|
/* Note that the protection is never released. The mutex delete |
403 |
|
|
service will handle all threads waiting access to this media |
404 |
|
|
control block. */ |
405 |
|
3297 |
tx_mutex_delete(& (media_ptr -> fx_media_protect)); |
406 |
|
|
#endif |
407 |
|
|
#endif |
408 |
|
|
|
409 |
|
|
/* Invoke media close callback. */ |
410 |
✓✓ |
3297 |
if (media_ptr -> fx_media_close_notify) |
411 |
|
|
{ |
412 |
|
1 |
media_ptr -> fx_media_close_notify(media_ptr); |
413 |
|
|
} |
414 |
|
|
|
415 |
|
|
#ifdef FX_DONT_CREATE_MUTEX |
416 |
|
|
|
417 |
|
|
/* Release media protection. */ |
418 |
|
|
FX_UNPROTECT |
419 |
|
|
#endif |
420 |
|
|
|
421 |
|
|
/* Return success status to the caller. */ |
422 |
|
3297 |
return(FX_SUCCESS); |
423 |
|
|
} |
424 |
|
|
|