On Sun, Jan 27, 2019 at 06:33:52PM -0200, Renato Lui Geh wrote: > + st->reg = devm_regulator_get(&spi->dev, "avdd"); > + if (IS_ERR(st->reg)) > + return PTR_ERR(st->reg); > + > + ret = regulator_enable(st->reg); > + if (ret) { > + dev_err(&spi->dev, "Failed to enable specified AVdd supply\n"); > + goto error_disable_reg; > + } We don't need to disable the regulator if enabling it failed (probably, I haven't looked at the code). > + > + ret = ad_sd_setup_buffer_and_trigger(indio_dev); > + if (ret) > + goto error_disable_reg; > + > + ret = iio_device_register(indio_dev); > + if (ret) > + goto error_cleanup_buffer_and_trigger; > + > + return 0; > + > +error_cleanup_buffer_and_trigger: > + ad_sd_cleanup_buffer_and_trigger(indio_dev); > +error_disable_reg: > + regulator_disable(st->reg); > + Well chosen label names, btw. Very easy to review. > + return ret; > +} > + regards, dan carpenter