Commit 33a1d461 authored by Bob Moore's avatar Bob Moore Committed by Len Brown

ACPICA: Change behavior of object copy for mutex/event objects

When copying these internal objects, cannot simply copy the
underlying OS object. A new OS object must be created.
Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarLin Ming <ming.m.lin@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 8eb7b247
......@@ -676,6 +676,7 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
{
u16 reference_count;
union acpi_operand_object *next_object;
acpi_status status;
/* Save fields from destination that we don't want to overwrite */
......@@ -768,6 +769,28 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc,
}
break;
/*
* For Mutex and Event objects, we cannot simply copy the underlying
* OS object. We must create a new one.
*/
case ACPI_TYPE_MUTEX:
status = acpi_os_create_mutex(&dest_desc->mutex.os_mutex);
if (ACPI_FAILURE(status)) {
return status;
}
break;
case ACPI_TYPE_EVENT:
status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0,
&dest_desc->event.
os_semaphore);
if (ACPI_FAILURE(status)) {
return status;
}
break;
default:
/* Nothing to do for other simple objects */
break;
......
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