On Fri, Apr 30, 2021 at 6:16 PM Ivan Mikhaylov [off-list ref] wrote:

Add the low/high threshold options.

...

+                       rc = regmap_bulk_read(data->regmap, VCNL_PS_HI_THR_HI,
+                                             &res, 2);

sizeof(res)

+                       *val = be16_to_cpu(res);

So, the rule of thumb is not putting anything to the output, until you
know that there is no error.

+                       if (rc < 0)
+                               return rc;

...

+                       rc = regmap_bulk_read(data->regmap, VCNL_PS_LO_THR_HI,
+                                             &res, 2);
+                       *val = be16_to_cpu(res);
+                       if (rc < 0)
+                               return rc;

As per above.

...

+                       rc = regmap_bulk_write(data->regmap, VCNL_PS_HI_THR_HI,
+                                              &buf, 2);

sizeof(buf) ?

...

+                       rc = regmap_bulk_write(data->regmap, VCNL_PS_LO_THR_HI,
+                                              &buf, 2);

Ditto.

...

+end:

out_release_direct_mode:

+       iio_device_release_direct_mode(indio_dev);
+       return rc;

-- 
With Best Regards,
Andy Shevchenko