diff options
| author | Bob Moore <robert.moore@intel.com> | 2010-10-18 08:43:13 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-10-17 22:55:20 -0400 |
| commit | 3989170f8e3c1bd71d8f7ec6e3d52e46815ee096 (patch) | |
| tree | a4af357da038a4e76ff40a752662a39a12dc6b71 /drivers | |
| parent | 3af283e1141474925b33383425bbe038e75fd03a (diff) | |
ACPICA: Comment update; no functional change
Add a usage note to InstallAddressSpaceHandler.
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/acpica/evxfregn.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c index 541cbc1544d..ce9314f7945 100644 --- a/drivers/acpi/acpica/evxfregn.c +++ b/drivers/acpi/acpica/evxfregn.c @@ -64,6 +64,12 @@ ACPI_MODULE_NAME("evxfregn") * * DESCRIPTION: Install a handler for all op_regions of a given space_id. * + * NOTE: This function should only be called after acpi_enable_subsystem has + * been called. This is because any _REG methods associated with the Space ID + * are executed here, and these methods can only be safely executed after + * the default handlers have been installed and the hardware has been + * initialized (via acpi_enable_subsystem.) + * ******************************************************************************/ acpi_status acpi_install_address_space_handler(acpi_handle device, |