| Message ID | 20210928141956.2148-5-caihuoqing@baidu.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v3,1/9] iio: adc: ab8500-gpadc: Make use of the helper function dev_err_probe() | expand |
On Tue, 28 Sep 2021 22:19:51 +0800 Cai Huoqing <caihuoqing@baidu.com> wrote: > When possible use dev_err_probe help to properly deal with the > PROBE_DEFER error, the benefit is that DEFER issue will be logged > in the devices_deferred debugfs file. > Using dev_err_probe() can reduce code size, and the error value > gets printed. > > Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Hi Cai, Please also add a message to the devm_gpiod_get_optional() and similar handling so that we maintain information on that as well. Thanks, Jonathan > --- > drivers/iio/adc/max1241.c | 14 ++++++-------- > 1 file changed, 6 insertions(+), 8 deletions(-) > > diff --git a/drivers/iio/adc/max1241.c b/drivers/iio/adc/max1241.c > index b60f8448f21a..130ca8dc6fa0 100644 > --- a/drivers/iio/adc/max1241.c > +++ b/drivers/iio/adc/max1241.c > @@ -148,10 +148,9 @@ static int max1241_probe(struct spi_device *spi) > mutex_init(&adc->lock); > > adc->vdd = devm_regulator_get(dev, "vdd"); > - if (IS_ERR(adc->vdd)) { > - dev_err(dev, "failed to get vdd regulator\n"); > - return PTR_ERR(adc->vdd); > - } > + if (IS_ERR(adc->vdd)) > + return dev_err_probe(dev, PTR_ERR(adc->vdd), > + "failed to get vdd regulator\n"); > > ret = regulator_enable(adc->vdd); > if (ret) > @@ -164,10 +163,9 @@ static int max1241_probe(struct spi_device *spi) > } > > adc->vref = devm_regulator_get(dev, "vref"); > - if (IS_ERR(adc->vref)) { > - dev_err(dev, "failed to get vref regulator\n"); > - return PTR_ERR(adc->vref); > - } > + if (IS_ERR(adc->vref)) > + return dev_err_probe(dev, PTR_ERR(adc->vref), > + "failed to get vref regulator\n"); > > ret = regulator_enable(adc->vref); > if (ret)
diff --git a/drivers/iio/adc/max1241.c b/drivers/iio/adc/max1241.c index b60f8448f21a..130ca8dc6fa0 100644 --- a/drivers/iio/adc/max1241.c +++ b/drivers/iio/adc/max1241.c @@ -148,10 +148,9 @@ static int max1241_probe(struct spi_device *spi) mutex_init(&adc->lock); adc->vdd = devm_regulator_get(dev, "vdd"); - if (IS_ERR(adc->vdd)) { - dev_err(dev, "failed to get vdd regulator\n"); - return PTR_ERR(adc->vdd); - } + if (IS_ERR(adc->vdd)) + return dev_err_probe(dev, PTR_ERR(adc->vdd), + "failed to get vdd regulator\n"); ret = regulator_enable(adc->vdd); if (ret) @@ -164,10 +163,9 @@ static int max1241_probe(struct spi_device *spi) } adc->vref = devm_regulator_get(dev, "vref"); - if (IS_ERR(adc->vref)) { - dev_err(dev, "failed to get vref regulator\n"); - return PTR_ERR(adc->vref); - } + if (IS_ERR(adc->vref)) + return dev_err_probe(dev, PTR_ERR(adc->vref), + "failed to get vref regulator\n"); ret = regulator_enable(adc->vref); if (ret)
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. Using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> --- drivers/iio/adc/max1241.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-)