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iio: acpi: Improve iio_read_acpi_mount_matrix() 

By using ACPI_HANDLE() the handler argument can be retrieved directly.
Replace ACPI_COMPANION() + dereference with ACPI_HANDLE().

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20241024191200.229894-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Andy Shevchenko 2024-10-24 22:04:53 +03:00 committed by Jonathan Cameron
parent 77005bc23d
commit d411e5b5aa
1 changed files with 7 additions and 3 deletions
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10
drivers/iio/industrialio-acpi.c
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@ -28,17 +28,21 @@ bool iio_read_acpi_mount_matrix(struct device *dev,
char *acpi_method)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device *adev = ACPI_COMPANION(dev);
char *str;
union acpi_object *obj, *elements;
acpi_handle handle;
acpi_status status;
int i, j, val[3];
bool ret = false;
if (!adev || !acpi_has_method(adev->handle, acpi_method))
handle = ACPI_HANDLE(dev);
if (!handle)
return false;
status = acpi_evaluate_object(adev->handle, acpi_method, NULL, &buffer);
if (!acpi_has_method(handle, acpi_method))
return false;
status = acpi_evaluate_object(handle, acpi_method, NULL, &buffer);
if (ACPI_FAILURE(status)) {
dev_err(dev, "Failed to get ACPI mount matrix: %d\n", status);
return false;