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path: root/drivers/acpi/sysfs.c
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Diffstat (limited to 'drivers/acpi/sysfs.c')
-rw-r--r--drivers/acpi/sysfs.c54
1 files changed, 28 insertions, 26 deletions
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index db5293650f62..6dbc3ca45223 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -309,7 +309,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
309 sprintf(table_attr->name + ACPI_NAME_SIZE, "%d", 309 sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
310 table_attr->instance); 310 table_attr->instance);
311 311
312 table_attr->attr.size = 0; 312 table_attr->attr.size = table_header->length;
313 table_attr->attr.read = acpi_table_show; 313 table_attr->attr.read = acpi_table_show;
314 table_attr->attr.attr.name = table_attr->name; 314 table_attr->attr.attr.name = table_attr->name;
315 table_attr->attr.attr.mode = 0400; 315 table_attr->attr.attr.mode = 0400;
@@ -354,8 +354,9 @@ static int acpi_tables_sysfs_init(void)
354{ 354{
355 struct acpi_table_attr *table_attr; 355 struct acpi_table_attr *table_attr;
356 struct acpi_table_header *table_header = NULL; 356 struct acpi_table_header *table_header = NULL;
357 int table_index = 0; 357 int table_index;
358 int result; 358 acpi_status status;
359 int ret;
359 360
360 tables_kobj = kobject_create_and_add("tables", acpi_kobj); 361 tables_kobj = kobject_create_and_add("tables", acpi_kobj);
361 if (!tables_kobj) 362 if (!tables_kobj)
@@ -365,33 +366,34 @@ static int acpi_tables_sysfs_init(void)
365 if (!dynamic_tables_kobj) 366 if (!dynamic_tables_kobj)
366 goto err_dynamic_tables; 367 goto err_dynamic_tables;
367 368
368 do { 369 for (table_index = 0;; table_index++) {
369 result = acpi_get_table_by_index(table_index, &table_header); 370 status = acpi_get_table_by_index(table_index, &table_header);
370 if (!result) { 371
371 table_index++; 372 if (status == AE_BAD_PARAMETER)
372 table_attr = NULL; 373 break;
373 table_attr = 374
374 kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL); 375 if (ACPI_FAILURE(status))
375 if (!table_attr) 376 continue;
376 return -ENOMEM; 377
377 378 table_attr = NULL;
378 acpi_table_attr_init(table_attr, table_header); 379 table_attr = kzalloc(sizeof(*table_attr), GFP_KERNEL);
379 result = 380 if (!table_attr)
380 sysfs_create_bin_file(tables_kobj, 381 return -ENOMEM;
381 &table_attr->attr); 382
382 if (result) { 383 acpi_table_attr_init(table_attr, table_header);
383 kfree(table_attr); 384 ret = sysfs_create_bin_file(tables_kobj, &table_attr->attr);
384 return result; 385 if (ret) {
385 } else 386 kfree(table_attr);
386 list_add_tail(&table_attr->node, 387 return ret;
387 &acpi_table_attr_list);
388 } 388 }
389 } while (!result); 389 list_add_tail(&table_attr->node, &acpi_table_attr_list);
390 }
391
390 kobject_uevent(tables_kobj, KOBJ_ADD); 392 kobject_uevent(tables_kobj, KOBJ_ADD);
391 kobject_uevent(dynamic_tables_kobj, KOBJ_ADD); 393 kobject_uevent(dynamic_tables_kobj, KOBJ_ADD);
392 result = acpi_install_table_handler(acpi_sysfs_table_handler, NULL); 394 status = acpi_install_table_handler(acpi_sysfs_table_handler, NULL);
393 395
394 return result == AE_OK ? 0 : -EINVAL; 396 return ACPI_FAILURE(status) ? -EINVAL : 0;
395err_dynamic_tables: 397err_dynamic_tables:
396 kobject_put(tables_kobj); 398 kobject_put(tables_kobj);
397err: 399err: