From: Bob Moore <robert.moore@xxxxxxxxx>
When copying these internal objects, cannot simply copy the
underlying OS object. A new OS object must be created.
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
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 919624f..0f0c64b 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;
--
1.6.0.6
--
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