| Message ID | 20220628151631.3116454-3-claudiu.beznea@microchip.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | iio: adc: at91-sama5d2_adc: add support for temperature sensor | expand |
On Tue, 28 Jun 2022 18:16:14 +0300 Claudiu Beznea <claudiu.beznea@microchip.com> wrote: > 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 --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c > index 32b6f157b803..c3301c749164 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); Prefer to keep error path out of line. if (ret < 0) return ret; return at91_adc_adjust_val_osr(); Also ends up as a slightly less invasive change. > + 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); As above. > + return ret; > } > > /* in this case we have a voltage channel */
On Sat, 16 Jul 2022 17:25:31 +0100 Jonathan Cameron <jic23@kernel.org> wrote: > On Tue, 28 Jun 2022 18:16:14 +0300 > Claudiu Beznea <claudiu.beznea@microchip.com> wrote: > > > 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 --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c > > index 32b6f157b803..c3301c749164 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); > Prefer to keep error path out of line. > > if (ret < 0) > return ret; > > return at91_adc_adjust_val_osr(); > > Also ends up as a slightly less invasive change. Ah. I should have read on through the series. Ignore this. > > > + 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); > As above. > > > + return ret; > > } > > > > /* in this case we have a voltage channel */ >
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 32b6f157b803..c3301c749164 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 */
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(-)