diff options
| -rw-r--r-- | drivers/acpi/acpica/evregion.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index cea14d6fc76c..6293d6bb6fe1 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -217,16 +217,11 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) { region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE; - if (region_obj2->extra.region_context) { - - /* The handler for this region was already installed */ - - ACPI_FREE(region_context); - } else { - /* - * Save the returned context for use in all accesses to - * this particular region - */ + /* + * Save the returned context for use in all accesses to + * the handler for this particular region + */ + if (!(region_obj2->extra.region_context)) { region_obj2->extra.region_context = region_context; } @@ -402,6 +397,14 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, handler_obj->address_space. context, region_context); + /* + * region_context should have been released by the deactivate + * operation. We don't need access to it anymore here. + */ + if (region_context) { + *region_context = NULL; + } + /* Init routine may fail, Just ignore errors */ if (ACPI_FAILURE(status)) { |