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@xxxxxxxxxxxxxx>
---
drivers/pci/pci-acpi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6.26-rc2-git3/drivers/pci/pci-acpi.c
===================================================================
--- linux-2.6.26-rc2-git3.orig/drivers/pci/pci-acpi.c
+++ linux-2.6.26-rc2-git3/drivers/pci/pci-acpi.c
@@ -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_h
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_han
if (!ctrlset)
return AE_TYPE;
- if (osc_data->support_set &&
+ if (osc_data->is_queried &&
((osc_data->query_result & ctrlset) != ctrlset))
return AE_SUPPORT;
--
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