iio: adc: ad_sigma_delta: use sizeof() in ALIGN()

Use sizeof() instead of hardcoding the size of the timestamp in the
ALIGN() macro. This makes it a bit more obvious what the intention of
the code is.

Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250701-iio-adc-ad7173-add-spi-offload-support-v3-4-42abb83e3dac@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index 5362157966d89cbf0e602716aaaf0b78f3921b11..dd15c357d1494bf5718e50e50a514cb4d4556f2b 100644 (file)
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -488,7 +488,8 @@ static int ad_sd_buffer_postenable(struct iio_dev *indio_dev)
                        return ret;
        }
 
-       samples_buf_size = ALIGN(slot * indio_dev->channels[0].scan_type.storagebits / 8, 8);
+       samples_buf_size = ALIGN(slot * indio_dev->channels[0].scan_type.storagebits / 8,
+                                sizeof(s64));
        samples_buf_size += sizeof(s64);
        samples_buf = devm_krealloc(&sigma_delta->spi->dev, sigma_delta->samples_buf,
                                    samples_buf_size, GFP_KERNEL);