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pci-acpi: add flag to indicate query had been done

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Current pci-acpi implementation checks osc_data->support_stat to see
if control bits had been already queried. It is not good from the
viewpoint of easy understanding. So this patch adds new 'is_queried'
flag to indicate query had been done.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Acked-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Kenji Kaneshige 2008-05-15 15:21:16 +09:00 committed by Jesse Barnes
parent 5e0b994745
commit 681f7d9db5
1 changed files with 3 additions and 1 deletions
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4
drivers/pci/pci-acpi.c
View file

@ -23,6 +23,7 @@ struct acpi_osc_data {
acpi_handle handle;
u32 support_set;
u32 control_set;
int is_queried;
u32 query_result;
struct list_head sibiling;
};
@ -147,6 +148,7 @@ static acpi_status acpi_query_osc(acpi_handle handle,
if (ACPI_SUCCESS(status)) {
osc_data->support_set = support_set;
osc_data->query_result = osc_args.query_result;
osc_data->is_queried = 1;
}
return status;
@ -203,7 +205,7 @@ acpi_status pci_osc_control_set(acpi_handle handle, u32 flags)
if (!ctrlset)
return AE_TYPE;
if (osc_data->support_set &&
if (osc_data->is_queried &&
((osc_data->query_result & ctrlset) != ctrlset))
return AE_SUPPORT;