diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci-acpi.c | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 7d33fc0ec2f..981919d163a 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -24,15 +24,13 @@ struct acpi_osc_data { acpi_handle handle; u32 support_set; u32 control_set; - int is_queried; - u32 query_result; struct list_head sibiling; }; static LIST_HEAD(acpi_osc_data_list); struct acpi_osc_args { u32 capbuf[3]; - u32 query_result; + u32 ctrl_result; }; static DEFINE_MUTEX(pci_acpi_lock); @@ -110,9 +108,8 @@ static acpi_status acpi_run_osc(acpi_handle handle, goto out_kfree; } out_success: - if (flags & OSC_QUERY_ENABLE) - osc_args->query_result = - *((u32 *)(out_obj->buffer.pointer + 8)); + osc_args->ctrl_result = + *((u32 *)(out_obj->buffer.pointer + 8)); status = AE_OK; out_kfree: @@ -120,7 +117,8 @@ out_kfree: return status; } -static acpi_status __acpi_query_osc(u32 flags, struct acpi_osc_data *osc_data) +static acpi_status __acpi_query_osc(u32 flags, struct acpi_osc_data *osc_data, + u32 *result) { acpi_status status; u32 support_set; @@ -135,8 +133,7 @@ static acpi_status __acpi_query_osc(u32 flags, struct acpi_osc_data *osc_data) status = acpi_run_osc(osc_data->handle, &osc_args); if (ACPI_SUCCESS(status)) { osc_data->support_set = support_set; - osc_data->query_result = osc_args.query_result; - osc_data->is_queried = 1; + *result = osc_args.ctrl_result; } return status; @@ -147,7 +144,7 @@ static acpi_status acpi_query_osc(acpi_handle handle, { acpi_status status; struct acpi_osc_data *osc_data; - u32 flags = (unsigned long)context; + u32 flags = (unsigned long)context, dummy; acpi_handle tmp; status = acpi_get_handle(handle, "_OSC", &tmp); @@ -162,7 +159,7 @@ static acpi_status acpi_query_osc(acpi_handle handle, goto out; } - status = __acpi_query_osc(flags, osc_data); + status = __acpi_query_osc(flags, osc_data, &dummy); out: mutex_unlock(&pci_acpi_lock); return status; @@ -196,7 +193,7 @@ acpi_status __pci_osc_support_set(u32 flags, const char *hid) acpi_status pci_osc_control_set(acpi_handle handle, u32 flags) { acpi_status status; - u32 ctrlset, control_set; + u32 ctrlset, control_set, result; acpi_handle tmp; struct acpi_osc_data *osc_data; struct acpi_osc_args osc_args; @@ -219,13 +216,11 @@ acpi_status pci_osc_control_set(acpi_handle handle, u32 flags) goto out; } - if (!osc_data->is_queried) { - status = __acpi_query_osc(osc_data->support_set, osc_data); - if (ACPI_FAILURE(status)) - goto out; - } + status = __acpi_query_osc(osc_data->support_set, osc_data, &result); + if (ACPI_FAILURE(status)) + goto out; - if ((osc_data->query_result & ctrlset) != ctrlset) { + if ((result & ctrlset) != ctrlset) { status = AE_SUPPORT; goto out; } |