ACPICA: Add mechanism to defer _REG methods for some installed handlers
The memory/io/pci/dataTable regions must always be available. For
any user installed handlers for these spaces, defer execution
of _REG methods until acpi_enable_subsystem. This prevents any
chicken/egg problems and ensures that no methods are executed
until all of these regions are ready and available.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 785a5ee..bea7223 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -231,6 +231,8 @@
}
}
+ acpi_gbl_reg_methods_executed = TRUE;
+
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return_ACPI_STATUS(status);
}