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85e923a5 LG |
1 | /** @file\r |
2 | \r | |
3 | Internal functions to operate Working Block Space.\r | |
4 | \r | |
3e02ebb2 | 5 | Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 6 | This program and the accompanying materials \r |
85e923a5 LG |
7 | are licensed and made available under the terms and conditions of the BSD License \r |
8 | which accompanies this distribution. The full text of the license may be found at \r | |
9 | http://opensource.org/licenses/bsd-license.php \r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | \r | |
17 | #include "FaultTolerantWrite.h"\r | |
18 | \r | |
05cfd5f2 | 19 | EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER mWorkingBlockHeader = {ZERO_GUID, 0, 0, 0, 0, {0, 0, 0}, 0};\r |
85e923a5 | 20 | \r |
05cfd5f2 SZ |
21 | /**\r |
22 | Initialize a local work space header.\r | |
85e923a5 | 23 | \r |
05cfd5f2 SZ |
24 | Since Signature and WriteQueueSize have been known, Crc can be calculated out,\r |
25 | then the work space header will be fixed.\r | |
85e923a5 | 26 | **/\r |
05cfd5f2 SZ |
27 | VOID\r |
28 | InitializeLocalWorkSpaceHeader (\r | |
29 | VOID\r | |
85e923a5 LG |
30 | )\r |
31 | {\r | |
32 | EFI_STATUS Status;\r | |
85e923a5 | 33 | \r |
85e923a5 | 34 | //\r |
3e02ebb2 | 35 | // Check signature with gEdkiiWorkingBlockSignatureGuid.\r |
85e923a5 | 36 | //\r |
3e02ebb2 | 37 | if (CompareGuid (&gEdkiiWorkingBlockSignatureGuid, &mWorkingBlockHeader.Signature)) {\r |
05cfd5f2 SZ |
38 | //\r |
39 | // The local work space header has been initialized.\r | |
40 | //\r | |
41 | return;\r | |
85e923a5 | 42 | }\r |
05cfd5f2 SZ |
43 | \r |
44 | SetMem (\r | |
45 | &mWorkingBlockHeader,\r | |
46 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),\r | |
47 | FTW_ERASED_BYTE\r | |
48 | );\r | |
49 | \r | |
85e923a5 | 50 | //\r |
3e02ebb2 | 51 | // Here using gEdkiiWorkingBlockSignatureGuid as the signature.\r |
85e923a5 LG |
52 | //\r |
53 | CopyMem (\r | |
05cfd5f2 | 54 | &mWorkingBlockHeader.Signature,\r |
3e02ebb2 | 55 | &gEdkiiWorkingBlockSignatureGuid,\r |
05cfd5f2 | 56 | sizeof (EFI_GUID)\r |
85e923a5 | 57 | );\r |
05cfd5f2 | 58 | mWorkingBlockHeader.WriteQueueSize = (UINT64) (PcdGet32 (PcdFlashNvStorageFtwWorkingSize) - sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER));\r |
85e923a5 LG |
59 | \r |
60 | //\r | |
05cfd5f2 | 61 | // Crc is calculated with all the fields except Crc and STATE, so leave them as FTW_ERASED_BYTE.\r |
85e923a5 | 62 | //\r |
85e923a5 LG |
63 | \r |
64 | //\r | |
65 | // Calculate the Crc of woking block header\r | |
66 | //\r | |
67 | Status = gBS->CalculateCrc32 (\r | |
05cfd5f2 | 68 | &mWorkingBlockHeader,\r |
85e923a5 | 69 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),\r |
05cfd5f2 | 70 | &mWorkingBlockHeader.Crc\r |
85e923a5 | 71 | );\r |
05cfd5f2 SZ |
72 | ASSERT_EFI_ERROR (Status);\r |
73 | \r | |
74 | mWorkingBlockHeader.WorkingBlockValid = FTW_VALID_STATE;\r | |
75 | mWorkingBlockHeader.WorkingBlockInvalid = FTW_INVALID_STATE;\r | |
76 | }\r | |
77 | \r | |
78 | /**\r | |
79 | Check to see if it is a valid work space.\r | |
80 | \r | |
81 | \r | |
82 | @param WorkingHeader Pointer of working block header\r | |
83 | \r | |
84 | @retval TRUE The work space is valid.\r | |
85 | @retval FALSE The work space is invalid.\r | |
86 | \r | |
87 | **/\r | |
88 | BOOLEAN\r | |
89 | IsValidWorkSpace (\r | |
90 | IN EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingHeader\r | |
91 | )\r | |
92 | {\r | |
93 | if (WorkingHeader == NULL) {\r | |
85e923a5 LG |
94 | return FALSE;\r |
95 | }\r | |
96 | \r | |
05cfd5f2 SZ |
97 | if (CompareMem (WorkingHeader, &mWorkingBlockHeader, sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER)) == 0) {\r |
98 | return TRUE;\r | |
85e923a5 LG |
99 | }\r |
100 | \r | |
05cfd5f2 SZ |
101 | DEBUG ((EFI_D_ERROR, "Ftw: Work block header check error\n"));\r |
102 | return FALSE;\r | |
85e923a5 LG |
103 | }\r |
104 | \r | |
105 | /**\r | |
106 | Initialize a work space when there is no work space.\r | |
107 | \r | |
108 | @param WorkingHeader Pointer of working block header\r | |
109 | \r | |
110 | @retval EFI_SUCCESS The function completed successfully\r | |
111 | @retval EFI_ABORTED The function could not complete successfully.\r | |
112 | \r | |
113 | **/\r | |
114 | EFI_STATUS\r | |
115 | InitWorkSpaceHeader (\r | |
116 | IN EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingHeader\r | |
117 | )\r | |
118 | {\r | |
85e923a5 LG |
119 | if (WorkingHeader == NULL) {\r |
120 | return EFI_INVALID_PARAMETER;\r | |
121 | }\r | |
85e923a5 | 122 | \r |
05cfd5f2 | 123 | CopyMem (WorkingHeader, &mWorkingBlockHeader, sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER));\r |
85e923a5 LG |
124 | \r |
125 | return EFI_SUCCESS;\r | |
126 | }\r | |
127 | \r | |
128 | /**\r | |
129 | Read from working block to refresh the work space in memory.\r | |
130 | \r | |
131 | @param FtwDevice Point to private data of FTW driver\r | |
132 | \r | |
133 | @retval EFI_SUCCESS The function completed successfully\r | |
134 | @retval EFI_ABORTED The function could not complete successfully.\r | |
135 | \r | |
136 | **/\r | |
137 | EFI_STATUS\r | |
138 | WorkSpaceRefresh (\r | |
139 | IN EFI_FTW_DEVICE *FtwDevice\r | |
140 | )\r | |
141 | {\r | |
142 | EFI_STATUS Status;\r | |
143 | UINTN Length;\r | |
d379cbc7 | 144 | UINTN RemainingSpaceSize;\r |
85e923a5 LG |
145 | \r |
146 | //\r | |
147 | // Initialize WorkSpace as FTW_ERASED_BYTE\r | |
148 | //\r | |
149 | SetMem (\r | |
150 | FtwDevice->FtwWorkSpace,\r | |
151 | FtwDevice->FtwWorkSpaceSize,\r | |
152 | FTW_ERASED_BYTE\r | |
153 | );\r | |
154 | \r | |
155 | //\r | |
156 | // Read from working block\r | |
157 | //\r | |
158 | Length = FtwDevice->FtwWorkSpaceSize;\r | |
159 | Status = FtwDevice->FtwFvBlock->Read (\r | |
160 | FtwDevice->FtwFvBlock,\r | |
161 | FtwDevice->FtwWorkSpaceLba,\r | |
162 | FtwDevice->FtwWorkSpaceBase,\r | |
163 | &Length,\r | |
164 | FtwDevice->FtwWorkSpace\r | |
165 | );\r | |
166 | if (EFI_ERROR (Status)) {\r | |
167 | return EFI_ABORTED;\r | |
168 | }\r | |
169 | //\r | |
170 | // Refresh the FtwLastWriteHeader\r | |
171 | //\r | |
172 | Status = FtwGetLastWriteHeader (\r | |
173 | FtwDevice->FtwWorkSpaceHeader,\r | |
174 | FtwDevice->FtwWorkSpaceSize,\r | |
175 | &FtwDevice->FtwLastWriteHeader\r | |
176 | );\r | |
d379cbc7 SZ |
177 | RemainingSpaceSize = FtwDevice->FtwWorkSpaceSize - ((UINTN) FtwDevice->FtwLastWriteHeader - (UINTN) FtwDevice->FtwWorkSpace);\r |
178 | DEBUG ((EFI_D_INFO, "Ftw: Remaining work space size - %x\n", RemainingSpaceSize));\r | |
179 | //\r | |
180 | // If FtwGetLastWriteHeader() returns error, or the remaining space size is even not enough to contain\r | |
181 | // one EFI_FAULT_TOLERANT_WRITE_HEADER + one EFI_FAULT_TOLERANT_WRITE_RECORD(It will cause that the header\r | |
182 | // pointed by FtwDevice->FtwLastWriteHeader or record pointed by FtwDevice->FtwLastWriteRecord may contain invalid data),\r | |
183 | // it needs to reclaim work space.\r | |
184 | //\r | |
185 | if (EFI_ERROR (Status) || RemainingSpaceSize < sizeof (EFI_FAULT_TOLERANT_WRITE_HEADER) + sizeof (EFI_FAULT_TOLERANT_WRITE_RECORD)) {\r | |
85e923a5 LG |
186 | //\r |
187 | // reclaim work space in working block.\r | |
188 | //\r | |
189 | Status = FtwReclaimWorkSpace (FtwDevice, TRUE);\r | |
190 | if (EFI_ERROR (Status)) {\r | |
191 | DEBUG ((EFI_D_ERROR, "Ftw: Reclaim workspace - %r\n", Status));\r | |
192 | return EFI_ABORTED;\r | |
193 | }\r | |
194 | //\r | |
195 | // Read from working block again\r | |
196 | //\r | |
197 | Length = FtwDevice->FtwWorkSpaceSize;\r | |
198 | Status = FtwDevice->FtwFvBlock->Read (\r | |
199 | FtwDevice->FtwFvBlock,\r | |
200 | FtwDevice->FtwWorkSpaceLba,\r | |
201 | FtwDevice->FtwWorkSpaceBase,\r | |
202 | &Length,\r | |
203 | FtwDevice->FtwWorkSpace\r | |
204 | );\r | |
205 | if (EFI_ERROR (Status)) {\r | |
206 | return EFI_ABORTED;\r | |
207 | }\r | |
208 | \r | |
209 | Status = FtwGetLastWriteHeader (\r | |
210 | FtwDevice->FtwWorkSpaceHeader,\r | |
211 | FtwDevice->FtwWorkSpaceSize,\r | |
212 | &FtwDevice->FtwLastWriteHeader\r | |
213 | );\r | |
d26c7e82 SZ |
214 | if (EFI_ERROR (Status)) {\r |
215 | return EFI_ABORTED;\r | |
216 | }\r | |
85e923a5 LG |
217 | }\r |
218 | //\r | |
219 | // Refresh the FtwLastWriteRecord\r | |
220 | //\r | |
221 | Status = FtwGetLastWriteRecord (\r | |
222 | FtwDevice->FtwLastWriteHeader,\r | |
223 | &FtwDevice->FtwLastWriteRecord\r | |
224 | );\r | |
225 | if (EFI_ERROR (Status)) {\r | |
226 | return EFI_ABORTED;\r | |
227 | }\r | |
228 | \r | |
229 | return EFI_SUCCESS;\r | |
230 | }\r | |
231 | \r | |
232 | /**\r | |
233 | Reclaim the work space on the working block.\r | |
234 | \r | |
235 | @param FtwDevice Point to private data of FTW driver\r | |
236 | @param PreserveRecord Whether to preserve the working record is needed\r | |
237 | \r | |
238 | @retval EFI_SUCCESS The function completed successfully\r | |
239 | @retval EFI_OUT_OF_RESOURCES Allocate memory error\r | |
240 | @retval EFI_ABORTED The function could not complete successfully\r | |
241 | \r | |
242 | **/\r | |
243 | EFI_STATUS\r | |
244 | FtwReclaimWorkSpace (\r | |
245 | IN EFI_FTW_DEVICE *FtwDevice,\r | |
246 | IN BOOLEAN PreserveRecord\r | |
247 | )\r | |
248 | {\r | |
249 | EFI_STATUS Status;\r | |
250 | UINTN Length;\r | |
251 | EFI_FAULT_TOLERANT_WRITE_HEADER *Header;\r | |
252 | UINT8 *TempBuffer;\r | |
253 | UINTN TempBufferSize;\r | |
254 | UINTN SpareBufferSize;\r | |
255 | UINT8 *SpareBuffer;\r | |
256 | EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *WorkingBlockHeader;\r | |
257 | UINTN Index;\r | |
258 | UINT8 *Ptr;\r | |
d26c7e82 | 259 | EFI_LBA WorkSpaceLbaOffset;\r |
85e923a5 LG |
260 | \r |
261 | DEBUG ((EFI_D_ERROR, "Ftw: start to reclaim work space\n"));\r | |
262 | \r | |
d26c7e82 SZ |
263 | WorkSpaceLbaOffset = FtwDevice->FtwWorkSpaceLba - FtwDevice->FtwWorkBlockLba;\r |
264 | \r | |
85e923a5 LG |
265 | //\r |
266 | // Read all original data from working block to a memory buffer\r | |
267 | //\r | |
268 | TempBufferSize = FtwDevice->SpareAreaLength;\r | |
269 | TempBuffer = AllocateZeroPool (TempBufferSize);\r | |
270 | if (TempBuffer == NULL) {\r | |
271 | return EFI_OUT_OF_RESOURCES;\r | |
272 | }\r | |
273 | \r | |
274 | Ptr = TempBuffer;\r | |
275 | for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r | |
276 | Length = FtwDevice->BlockSize;\r | |
277 | Status = FtwDevice->FtwFvBlock->Read (\r | |
278 | FtwDevice->FtwFvBlock,\r | |
279 | FtwDevice->FtwWorkBlockLba + Index,\r | |
280 | 0,\r | |
281 | &Length,\r | |
282 | Ptr\r | |
283 | );\r | |
284 | if (EFI_ERROR (Status)) {\r | |
285 | FreePool (TempBuffer);\r | |
286 | return EFI_ABORTED;\r | |
287 | }\r | |
288 | \r | |
289 | Ptr += Length;\r | |
290 | }\r | |
291 | //\r | |
292 | // Clean up the workspace, remove all the completed records.\r | |
293 | //\r | |
294 | Ptr = TempBuffer +\r | |
d26c7e82 | 295 | (UINTN) WorkSpaceLbaOffset * FtwDevice->BlockSize +\r |
85e923a5 LG |
296 | FtwDevice->FtwWorkSpaceBase;\r |
297 | \r | |
298 | //\r | |
299 | // Clear the content of buffer that will save the new work space data\r | |
300 | //\r | |
301 | SetMem (Ptr, FtwDevice->FtwWorkSpaceSize, FTW_ERASED_BYTE);\r | |
302 | \r | |
303 | //\r | |
304 | // Copy EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER to buffer\r | |
305 | //\r | |
306 | CopyMem (\r | |
307 | Ptr,\r | |
308 | FtwDevice->FtwWorkSpaceHeader,\r | |
309 | sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER)\r | |
310 | );\r | |
311 | if (PreserveRecord) {\r | |
312 | //\r | |
313 | // Get the last record following the header,\r | |
314 | //\r | |
315 | Status = FtwGetLastWriteHeader (\r | |
316 | FtwDevice->FtwWorkSpaceHeader,\r | |
317 | FtwDevice->FtwWorkSpaceSize,\r | |
318 | &FtwDevice->FtwLastWriteHeader\r | |
319 | );\r | |
320 | Header = FtwDevice->FtwLastWriteHeader;\r | |
8dc8879a | 321 | if (!EFI_ERROR (Status) && (Header != NULL) && (Header->Complete != FTW_VALID_STATE) && (Header->HeaderAllocated == FTW_VALID_STATE)) {\r |
85e923a5 LG |
322 | CopyMem (\r |
323 | Ptr + sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),\r | |
324 | FtwDevice->FtwLastWriteHeader,\r | |
3e02ebb2 | 325 | FTW_WRITE_TOTAL_SIZE (Header->NumberOfWrites, Header->PrivateDataSize)\r |
85e923a5 LG |
326 | );\r |
327 | }\r | |
328 | }\r | |
329 | \r | |
330 | CopyMem (\r | |
331 | FtwDevice->FtwWorkSpace,\r | |
332 | Ptr,\r | |
333 | FtwDevice->FtwWorkSpaceSize\r | |
334 | );\r | |
335 | \r | |
336 | FtwGetLastWriteHeader (\r | |
337 | FtwDevice->FtwWorkSpaceHeader,\r | |
338 | FtwDevice->FtwWorkSpaceSize,\r | |
339 | &FtwDevice->FtwLastWriteHeader\r | |
340 | );\r | |
341 | \r | |
d26c7e82 SZ |
342 | FtwGetLastWriteRecord (\r |
343 | FtwDevice->FtwLastWriteHeader,\r | |
344 | &FtwDevice->FtwLastWriteRecord\r | |
345 | );\r | |
346 | \r | |
85e923a5 LG |
347 | //\r |
348 | // Set the WorkingBlockValid and WorkingBlockInvalid as INVALID\r | |
349 | //\r | |
d26c7e82 SZ |
350 | WorkingBlockHeader = (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER *) (TempBuffer +\r |
351 | (UINTN) WorkSpaceLbaOffset * FtwDevice->BlockSize +\r | |
352 | FtwDevice->FtwWorkSpaceBase);\r | |
85e923a5 LG |
353 | WorkingBlockHeader->WorkingBlockValid = FTW_INVALID_STATE;\r |
354 | WorkingBlockHeader->WorkingBlockInvalid = FTW_INVALID_STATE;\r | |
355 | \r | |
356 | //\r | |
357 | // Try to keep the content of spare block\r | |
358 | // Save spare block into a spare backup memory buffer (Sparebuffer)\r | |
359 | //\r | |
360 | SpareBufferSize = FtwDevice->SpareAreaLength;\r | |
361 | SpareBuffer = AllocatePool (SpareBufferSize);\r | |
362 | if (SpareBuffer == NULL) {\r | |
363 | FreePool (TempBuffer);\r | |
364 | return EFI_OUT_OF_RESOURCES;\r | |
365 | }\r | |
366 | \r | |
367 | Ptr = SpareBuffer;\r | |
368 | for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r | |
369 | Length = FtwDevice->BlockSize;\r | |
370 | Status = FtwDevice->FtwBackupFvb->Read (\r | |
371 | FtwDevice->FtwBackupFvb,\r | |
372 | FtwDevice->FtwSpareLba + Index,\r | |
373 | 0,\r | |
374 | &Length,\r | |
375 | Ptr\r | |
376 | );\r | |
377 | if (EFI_ERROR (Status)) {\r | |
378 | FreePool (TempBuffer);\r | |
379 | FreePool (SpareBuffer);\r | |
380 | return EFI_ABORTED;\r | |
381 | }\r | |
382 | \r | |
383 | Ptr += Length;\r | |
384 | }\r | |
385 | //\r | |
386 | // Write the memory buffer to spare block\r | |
387 | //\r | |
388 | Status = FtwEraseSpareBlock (FtwDevice);\r | |
389 | Ptr = TempBuffer;\r | |
390 | for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r | |
391 | Length = FtwDevice->BlockSize;\r | |
392 | Status = FtwDevice->FtwBackupFvb->Write (\r | |
393 | FtwDevice->FtwBackupFvb,\r | |
394 | FtwDevice->FtwSpareLba + Index,\r | |
395 | 0,\r | |
396 | &Length,\r | |
397 | Ptr\r | |
398 | );\r | |
399 | if (EFI_ERROR (Status)) {\r | |
400 | FreePool (TempBuffer);\r | |
401 | FreePool (SpareBuffer);\r | |
402 | return EFI_ABORTED;\r | |
403 | }\r | |
404 | \r | |
405 | Ptr += Length;\r | |
406 | }\r | |
407 | //\r | |
408 | // Free TempBuffer\r | |
409 | //\r | |
410 | FreePool (TempBuffer);\r | |
411 | \r | |
412 | //\r | |
413 | // Set the WorkingBlockValid in spare block\r | |
414 | //\r | |
415 | Status = FtwUpdateFvState (\r | |
416 | FtwDevice->FtwBackupFvb,\r | |
d26c7e82 | 417 | FtwDevice->FtwSpareLba + WorkSpaceLbaOffset,\r |
85e923a5 LG |
418 | FtwDevice->FtwWorkSpaceBase + sizeof (EFI_GUID) + sizeof (UINT32),\r |
419 | WORKING_BLOCK_VALID\r | |
420 | );\r | |
421 | if (EFI_ERROR (Status)) {\r | |
422 | FreePool (SpareBuffer);\r | |
423 | return EFI_ABORTED;\r | |
424 | }\r | |
425 | //\r | |
426 | // Before erase the working block, set WorkingBlockInvalid in working block.\r | |
427 | //\r | |
428 | // Offset = OFFSET_OF(EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER,\r | |
429 | // WorkingBlockInvalid);\r | |
430 | //\r | |
431 | Status = FtwUpdateFvState (\r | |
432 | FtwDevice->FtwFvBlock,\r | |
433 | FtwDevice->FtwWorkSpaceLba,\r | |
434 | FtwDevice->FtwWorkSpaceBase + sizeof (EFI_GUID) + sizeof (UINT32),\r | |
435 | WORKING_BLOCK_INVALID\r | |
436 | );\r | |
437 | if (EFI_ERROR (Status)) {\r | |
438 | FreePool (SpareBuffer);\r | |
439 | return EFI_ABORTED;\r | |
440 | }\r | |
441 | \r | |
442 | FtwDevice->FtwWorkSpaceHeader->WorkingBlockInvalid = FTW_VALID_STATE;\r | |
443 | \r | |
444 | //\r | |
445 | // Write the spare block to working block\r | |
446 | //\r | |
447 | Status = FlushSpareBlockToWorkingBlock (FtwDevice);\r | |
448 | if (EFI_ERROR (Status)) {\r | |
449 | FreePool (SpareBuffer);\r | |
450 | return Status;\r | |
451 | }\r | |
452 | //\r | |
453 | // Restore spare backup buffer into spare block , if no failure happened during FtwWrite.\r | |
454 | //\r | |
455 | Status = FtwEraseSpareBlock (FtwDevice);\r | |
456 | Ptr = SpareBuffer;\r | |
457 | for (Index = 0; Index < FtwDevice->NumberOfSpareBlock; Index += 1) {\r | |
458 | Length = FtwDevice->BlockSize;\r | |
459 | Status = FtwDevice->FtwBackupFvb->Write (\r | |
460 | FtwDevice->FtwBackupFvb,\r | |
461 | FtwDevice->FtwSpareLba + Index,\r | |
462 | 0,\r | |
463 | &Length,\r | |
464 | Ptr\r | |
465 | );\r | |
466 | if (EFI_ERROR (Status)) {\r | |
467 | FreePool (SpareBuffer);\r | |
468 | return EFI_ABORTED;\r | |
469 | }\r | |
470 | \r | |
471 | Ptr += Length;\r | |
472 | }\r | |
473 | \r | |
474 | FreePool (SpareBuffer);\r | |
475 | \r | |
476 | DEBUG ((EFI_D_ERROR, "Ftw: reclaim work space successfully\n"));\r | |
477 | \r | |
478 | return EFI_SUCCESS;\r | |
479 | }\r |