diff options
Diffstat (limited to 'drivers/acpi/executer/exnames.c')
-rw-r--r-- | drivers/acpi/executer/exnames.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c index 054fe5e1a314..d3d70364626c 100644 --- a/drivers/acpi/executer/exnames.c +++ b/drivers/acpi/executer/exnames.c | |||
@@ -77,7 +77,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) | |||
77 | char *name_string; | 77 | char *name_string; |
78 | u32 size_needed; | 78 | u32 size_needed; |
79 | 79 | ||
80 | ACPI_FUNCTION_TRACE("ex_allocate_name_string"); | 80 | ACPI_FUNCTION_TRACE(ex_allocate_name_string); |
81 | 81 | ||
82 | /* | 82 | /* |
83 | * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix. | 83 | * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix. |
@@ -85,6 +85,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) | |||
85 | * This may actually be somewhat longer than needed. | 85 | * This may actually be somewhat longer than needed. |
86 | */ | 86 | */ |
87 | if (prefix_count == ACPI_UINT32_MAX) { | 87 | if (prefix_count == ACPI_UINT32_MAX) { |
88 | |||
88 | /* Special case for root */ | 89 | /* Special case for root */ |
89 | 90 | ||
90 | size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1; | 91 | size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1; |
@@ -97,7 +98,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) | |||
97 | * Allocate a buffer for the name. | 98 | * Allocate a buffer for the name. |
98 | * This buffer must be deleted by the caller! | 99 | * This buffer must be deleted by the caller! |
99 | */ | 100 | */ |
100 | name_string = ACPI_MEM_ALLOCATE(size_needed); | 101 | name_string = ACPI_ALLOCATE(size_needed); |
101 | if (!name_string) { | 102 | if (!name_string) { |
102 | ACPI_ERROR((AE_INFO, | 103 | ACPI_ERROR((AE_INFO, |
103 | "Could not allocate size %d", size_needed)); | 104 | "Could not allocate size %d", size_needed)); |
@@ -119,11 +120,13 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) | |||
119 | /* Set up Dual or Multi prefixes if needed */ | 120 | /* Set up Dual or Multi prefixes if needed */ |
120 | 121 | ||
121 | if (num_name_segs > 2) { | 122 | if (num_name_segs > 2) { |
123 | |||
122 | /* Set up multi prefixes */ | 124 | /* Set up multi prefixes */ |
123 | 125 | ||
124 | *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP; | 126 | *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP; |
125 | *temp_ptr++ = (char)num_name_segs; | 127 | *temp_ptr++ = (char)num_name_segs; |
126 | } else if (2 == num_name_segs) { | 128 | } else if (2 == num_name_segs) { |
129 | |||
127 | /* Set up dual prefixes */ | 130 | /* Set up dual prefixes */ |
128 | 131 | ||
129 | *temp_ptr++ = AML_DUAL_NAME_PREFIX; | 132 | *temp_ptr++ = AML_DUAL_NAME_PREFIX; |
@@ -159,7 +162,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) | |||
159 | u32 index; | 162 | u32 index; |
160 | char char_buf[5]; | 163 | char char_buf[5]; |
161 | 164 | ||
162 | ACPI_FUNCTION_TRACE("ex_name_segment"); | 165 | ACPI_FUNCTION_TRACE(ex_name_segment); |
163 | 166 | ||
164 | /* | 167 | /* |
165 | * If first character is a digit, then we know that we aren't looking at a | 168 | * If first character is a digit, then we know that we aren't looking at a |
@@ -176,7 +179,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) | |||
176 | 179 | ||
177 | for (index = 0; | 180 | for (index = 0; |
178 | (index < ACPI_NAME_SIZE) | 181 | (index < ACPI_NAME_SIZE) |
179 | && (acpi_ut_valid_acpi_character(*aml_address)); index++) { | 182 | && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) { |
180 | char_buf[index] = *aml_address++; | 183 | char_buf[index] = *aml_address++; |
181 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index])); | 184 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index])); |
182 | } | 185 | } |
@@ -184,6 +187,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) | |||
184 | /* Valid name segment */ | 187 | /* Valid name segment */ |
185 | 188 | ||
186 | if (index == 4) { | 189 | if (index == 4) { |
190 | |||
187 | /* Found 4 valid characters */ | 191 | /* Found 4 valid characters */ |
188 | 192 | ||
189 | char_buf[4] = '\0'; | 193 | char_buf[4] = '\0'; |
@@ -249,11 +253,12 @@ acpi_ex_get_name_string(acpi_object_type data_type, | |||
249 | u32 prefix_count = 0; | 253 | u32 prefix_count = 0; |
250 | u8 has_prefix = FALSE; | 254 | u8 has_prefix = FALSE; |
251 | 255 | ||
252 | ACPI_FUNCTION_TRACE_PTR("ex_get_name_string", aml_address); | 256 | ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address); |
253 | 257 | ||
254 | if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type || | 258 | if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type || |
255 | ACPI_TYPE_LOCAL_BANK_FIELD == data_type || | 259 | ACPI_TYPE_LOCAL_BANK_FIELD == data_type || |
256 | ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) { | 260 | ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) { |
261 | |||
257 | /* Disallow prefixes for types associated with field_unit names */ | 262 | /* Disallow prefixes for types associated with field_unit names */ |
258 | 263 | ||
259 | name_string = acpi_ex_allocate_name_string(0, 1); | 264 | name_string = acpi_ex_allocate_name_string(0, 1); |
@@ -272,7 +277,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, | |||
272 | case AML_ROOT_PREFIX: | 277 | case AML_ROOT_PREFIX: |
273 | 278 | ||
274 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, | 279 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, |
275 | "root_prefix(\\) at %p\n", | 280 | "RootPrefix(\\) at %p\n", |
276 | aml_address)); | 281 | aml_address)); |
277 | 282 | ||
278 | /* | 283 | /* |
@@ -290,7 +295,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, | |||
290 | 295 | ||
291 | do { | 296 | do { |
292 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, | 297 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, |
293 | "parent_prefix (^) at %p\n", | 298 | "ParentPrefix (^) at %p\n", |
294 | aml_address)); | 299 | aml_address)); |
295 | 300 | ||
296 | aml_address++; | 301 | aml_address++; |
@@ -314,7 +319,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, | |||
314 | case AML_DUAL_NAME_PREFIX: | 319 | case AML_DUAL_NAME_PREFIX: |
315 | 320 | ||
316 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, | 321 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, |
317 | "dual_name_prefix at %p\n", | 322 | "DualNamePrefix at %p\n", |
318 | aml_address)); | 323 | aml_address)); |
319 | 324 | ||
320 | aml_address++; | 325 | aml_address++; |
@@ -341,7 +346,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, | |||
341 | case AML_MULTI_NAME_PREFIX_OP: | 346 | case AML_MULTI_NAME_PREFIX_OP: |
342 | 347 | ||
343 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, | 348 | ACPI_DEBUG_PRINT((ACPI_DB_LOAD, |
344 | "multi_name_prefix at %p\n", | 349 | "MultiNamePrefix at %p\n", |
345 | aml_address)); | 350 | aml_address)); |
346 | 351 | ||
347 | /* Fetch count of segments remaining in name path */ | 352 | /* Fetch count of segments remaining in name path */ |
@@ -377,7 +382,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, | |||
377 | 382 | ||
378 | if (prefix_count == ACPI_UINT32_MAX) { | 383 | if (prefix_count == ACPI_UINT32_MAX) { |
379 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, | 384 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
380 | "name_seg is \"\\\" followed by NULL\n")); | 385 | "NameSeg is \"\\\" followed by NULL\n")); |
381 | } | 386 | } |
382 | 387 | ||
383 | /* Consume the NULL byte */ | 388 | /* Consume the NULL byte */ |
@@ -410,6 +415,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, | |||
410 | } | 415 | } |
411 | 416 | ||
412 | if (AE_CTRL_PENDING == status && has_prefix) { | 417 | if (AE_CTRL_PENDING == status && has_prefix) { |
418 | |||
413 | /* Ran out of segments after processing a prefix */ | 419 | /* Ran out of segments after processing a prefix */ |
414 | 420 | ||
415 | ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string)); | 421 | ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string)); |
@@ -418,7 +424,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, | |||
418 | 424 | ||
419 | if (ACPI_FAILURE(status)) { | 425 | if (ACPI_FAILURE(status)) { |
420 | if (name_string) { | 426 | if (name_string) { |
421 | ACPI_MEM_FREE(name_string); | 427 | ACPI_FREE(name_string); |
422 | } | 428 | } |
423 | return_ACPI_STATUS(status); | 429 | return_ACPI_STATUS(status); |
424 | } | 430 | } |