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ACPICA fixes for 3.10-rc1

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- _INI regression fix from Tomasz Nowicki.
 
 - Fix for a possible memory leak in _OSI support routine from
   Jung-uk Kim.
 
 - Fix for a possible buffer overflow during field unit read operation
   from Bob Moore.
 
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Merge tag 'acpi-fixes-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPICA fixes from Rafael Wysocki:

 - _INI regression fix from Tomasz Nowicki.

 - Fix for a possible memory leak in _OSI support routine from Jung-uk
   Kim.

 - Fix for a possible buffer overflow during field unit read operation
   from Bob Moore.

* tag 'acpi-fixes-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPICA: ACPICA: Fix for _INI regression
  ACPICA: _OSI support: Fix possible memory leak
  ACPICA: Fix possible buffer overflow during a field unit read operation
This commit is contained in:
Linus Torvalds 2013-05-09 16:33:42 -07:00
commit 2e99f3a12b
3 changed files with 16 additions and 2 deletions
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14
drivers/acpi/acpica/exfldio.c
View File

@ -720,7 +720,19 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
if ((obj_desc->common_field.start_field_bit_offset == 0) &&
(obj_desc->common_field.bit_length == access_bit_width)) {
status = acpi_ex_field_datum_io(obj_desc, 0, buffer, ACPI_READ);
if (buffer_length >= sizeof(u64)) {
status =
acpi_ex_field_datum_io(obj_desc, 0, buffer,
ACPI_READ);
} else {
/* Use raw_datum (u64) to handle buffers < 64 bits */
status =
acpi_ex_field_datum_io(obj_desc, 0, &raw_datum,
ACPI_READ);
ACPI_MEMCPY(buffer, &raw_datum, buffer_length);
}
return_ACPI_STATUS(status);
}

1
drivers/acpi/acpica/nsinit.c
View File

@ -558,6 +558,7 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
(ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI));
ACPI_MEMSET(info, 0, sizeof(struct acpi_evaluate_info));
info->prefix_node = device_node;
info->pathname = METHOD_NAME__INI;
info->parameters = NULL;

3
drivers/acpi/acpica/utosi.c
View File

@ -349,7 +349,8 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state * walk_state)
return_value = 0;
status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
if (ACPI_FAILURE(status)) {
return (status);
acpi_ut_remove_reference(return_desc);
return_ACPI_STATUS(status);
}
/* Lookup the interface in the global _OSI list */