commit 402ac53614bce0c273c73a80339556bf56dd3d39
author Bjorn Helgaas <bjorn.helgaas@hp.com> Mon Sep 21 19:30:01 2009 +0000
committer Len Brown <len.brown@intel.com> Fri Sep 25 14:24:30 2009 -0400
tree ee08b782ad49532e52712c077333ee88a042019c
parent 51a85faf2d4ffecd8384b3f501f9f7ee2b05ee53

ACPI: add acpi_bus_get_status_handle()

Add acpi_bus_get_status_handle() so we can get the status of a namespace
object before building a struct acpi_device.

This removes a use of "device->flags.dynamic_status", a cached indicator of
whether _STA exists.  It seems simpler and more reliable to just evaluate
_STA and catch AE_NOT_FOUND errors.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>