This is a note to let you know that I've just added the patch titled iio: adc: at91-sama5d2_adc: check return status for pressure and touch to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iio-adc-at91-sama5d2_adc-check-return-status-for-pre.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 93ab1900d0fbda1c5b60ccac4e446d917e9c6262 Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx> Date: Wed Aug 3 13:28:38 2022 +0300 iio: adc: at91-sama5d2_adc: check return status for pressure and touch [ Upstream commit d84ace944a3b24529798dbae1340dea098473155 ] 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@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220803102855.2191070-3-claudiu.beznea@xxxxxxxxxxxxx Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 92e2e7420aa9..6eb72ba6b4d2 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -1331,8 +1331,10 @@ 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); @@ -1345,8 +1347,10 @@ 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 */