>> diff --git a/drivers/gpu/drm/i915/intel_acpi.c
>> b/drivers/gpu/drm/i915/intel_acpi.c
>> index dfff090..7ea00e5 100644
>> --- a/drivers/gpu/drm/i915/intel_acpi.c
>> +++ b/drivers/gpu/drm/i915/intel_acpi.c
>> @@ -35,7 +35,7 @@ static int intel_dsm(acpi_handle handle, int func)
>> union acpi_object params[4];
>> union acpi_object *obj;
>> u32 result;
>> - int ret = 0;
>
> The 'ret' is removed, but
Ah, it's my mistake, will updata it right now, thanks!
>
>> + acpi_status status;
>>
>> input.count = 4;
>> input.pointer = params;
>> @@ -50,8 +50,8 @@ static int intel_dsm(acpi_handle handle, int func)
>> params[3].package.count = 0;
>> params[3].package.elements = NULL;
>>
>> - ret = acpi_evaluate_object(handle, "_DSM", &input, &output);
>> - if (ret) {
>> + status = acpi_evaluate_object(handle, "_DSM", &input, &output);
>> + if (ACPI_FAILURE(status)) {
>> DRM_DEBUG_DRIVER("failed to evaluate _DSM: %d\n", ret);
>> return ret;
>
> you still use it here, so you should -EINVAL or something else here.
OK
>
>> }
>> @@ -141,7 +141,8 @@ static void intel_dsm_platform_mux_info(void)
>> struct acpi_object_list input;
>> union acpi_object params[4];
>> union acpi_object *pkg;
>> - int i, ret;
>> + acpi_status status;
>>
>> - err = acpi_evaluate_object(handle, "_DSM", &input, &output);
>> - if (err) {
>> + status = acpi_evaluate_object(handle, "_DSM", &input, &output);
>> + if (ACPI_FAILURE(status)) {
>> printk(KERN_INFO "failed to evaluate _DSM: %d\n", err);
>> return err;
>
> here too.
OK, thanks.
>
>> }
>> @@ -134,7 +135,7 @@ static int nouveau_dsm(acpi_handle handle, int func, int
>> arg, uint32_t *result)
>> struct acpi_object_list input;
>> union acpi_object params[4];
>> union acpi_object *obj;
>> - int err;
>> + acpi_status status;
>>
>> input.count = 4;
>> input.pointer = params;
>> @@ -148,8 +149,8 @@ static int nouveau_dsm(acpi_handle handle, int func, int
>> arg, uint32_t *result)
>> params[3].type = ACPI_TYPE_INTEGER;
>> params[3].integer.value = arg;
>>
>> - err = acpi_evaluate_object(handle, "_DSM", &input, &output);
>> - if (err) {
>> + status = acpi_evaluate_object(handle, "_DSM", &input, &output);
>> + if (ACPI_FAILURE(status)) {
>> printk(KERN_INFO "failed to evaluate _DSM: %d\n", err);
>> return err;
>
> and here.
thanks.
>
>> }
>> diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
>> index d51f45a..3c21f1b 100644
>> --- a/drivers/pci/pci-label.c
>> +++ b/drivers/pci/pci-label.c
>> @@ -213,7 +213,7 @@ dsm_get_label(acpi_handle handle, int func,
>> union acpi_object *obj;
>> int len = 0;
>>
>> - int err;
>> + acpi_status status;
>>
>> input.count = 4;
>> input.pointer = params;
>> @@ -228,8 +228,8 @@ dsm_get_label(acpi_handle handle, int func,
>> params[3].package.count = 0;
>> params[3].package.elements = NULL;
>>
>> - err = acpi_evaluate_object(handle, "_DSM", &input, output);
>> - if (err)
>> + status = acpi_evaluate_object(handle, "_DSM", &input, output);
>> + if (ACPI_FAILURE(status))
>> return -1;
>
> can we return specific error such as -EINVAL instead of hard code?
I will try to add some more useful debug info here. thanks!
>
> Thanks
> Hanjun
>
> .
>
--
Thanks!
Yijing
