diff options
Diffstat (limited to 'drivers/acpi/acpica')
| -rw-r--r-- | drivers/acpi/acpica/utcopy.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c index 919624f123d5..0f0c64bf8ac9 100644 --- a/drivers/acpi/acpica/utcopy.c +++ b/drivers/acpi/acpica/utcopy.c @@ -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; |