Commit 68b356eb authored Jun 20, 2016 by Mark Brown Committed by Jonathan Cameron Jun 26, 2016

iio:ad7266: Fix probe deferral for vref



Currently the ad7266 driver treats any failure to get vref as though the
regulator were not present but this means that if probe deferral is
triggered the driver will act as though the regulator were not present.
Instead only use the internal reference if we explicitly got -ENODEV which
is what is returned for absent regulators.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

parent e5511c81

drivers/iio/adc/ad7266.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -408,6 +408,9 @@ static int ad7266_probe(struct spi_device *spi)

		st->vref_mv = ret / 1000;
		} else {
		/* Any other error indicates that the regulator does exist */
		if (PTR_ERR(st->reg) != -ENODEV)
		return PTR_ERR(st->reg);
		/* Use internal reference */
		st->vref_mv = 2500;
		}