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[v3,02/19] iio: adc: at91-sama5d2_adc: check return status for pressure and touch

Message ID 20220803102855.2191070-3-claudiu.beznea@microchip.com
State Accepted
Commit d84ace944a3b24529798dbae1340dea098473155
Headers show
Series [v3,01/19] iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAX | expand

Commit Message

Claudiu Beznea Aug. 3, 2022, 10:28 a.m. UTC 
Check return status of at91_adc_read_position() and
at91_adc_read_pressure() in at91_adc_read_info_raw().

Fixes: 6794e23fa3fe ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/iio/adc/at91-sama5d2_adc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index ac9ef89fba17..08d1f806c839 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -1544,8 +1544,10 @@  static int at91_adc_read_info_raw(struct iio_dev *indio_dev,
 		*val = tmp_val;
 		mutex_unlock(&st->lock);
 		iio_device_release_direct_mode(indio_dev);
+		if (ret > 0)
+			ret = at91_adc_adjust_val_osr(st, val);
 
-		return at91_adc_adjust_val_osr(st, val);
+		return ret;
 	}
 	if (chan->type == IIO_PRESSURE) {
 		ret = iio_device_claim_direct_mode(indio_dev);
@@ -1558,8 +1560,10 @@  static int at91_adc_read_info_raw(struct iio_dev *indio_dev,
 		*val = tmp_val;
 		mutex_unlock(&st->lock);
 		iio_device_release_direct_mode(indio_dev);
+		if (ret > 0)
+			ret = at91_adc_adjust_val_osr(st, val);
 
-		return at91_adc_adjust_val_osr(st, val);
+		return ret;
 	}
 
 	/* in this case we have a voltage channel */