Lee Jones <lee.jones@xxxxxxxxxx> wrote:
>This patch contains some pretty basic clean-ups in probe() pertaining
>to
>the simplification of error handling and a couple of readability
>adaptions.
>
>Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Hi Lee
Most of this series look fine but I am not that keen on some of this one.
The white space changes are definitely a matter of taste and honestly I don't care either way.
The returns are fine when there is no cleanup to do.
GOTOs and a clean unwind of the function is to my eye easier to review than unwinding directly after each error.
If reviewing original driver I would probably not bother commenting but for a cleanup patch the cleanup wants to be a clear improvement!
Out of time now so will have to get to the rest of the series sometime soon.
>---
>drivers/iio/pressure/st_pressure_core.c | 41
>+++++++++++++++------------------
> 1 file changed, 19 insertions(+), 22 deletions(-)
>
>diff --git a/drivers/iio/pressure/st_pressure_core.c
>b/drivers/iio/pressure/st_pressure_core.c
>index 3cf54ed..2893d08 100644
>--- a/drivers/iio/pressure/st_pressure_core.c
>+++ b/drivers/iio/pressure/st_pressure_core.c
>@@ -224,21 +224,23 @@ static const struct iio_trigger_ops
>st_press_trigger_ops = {
>
> int st_press_common_probe(struct iio_dev *indio_dev)
> {
>- int err;
> struct st_sensor_data *pdata = iio_priv(indio_dev);
>+ int irq = pdata->get_irq_data_ready(indio_dev);
>+ int err;
>
> indio_dev->modes = INDIO_DIRECT_MODE;
> indio_dev->info = &press_info;
>
> err = st_sensors_check_device_support(indio_dev,
>- ARRAY_SIZE(st_press_sensors), st_press_sensors);
>+ ARRAY_SIZE(st_press_sensors),
>+ st_press_sensors);
> if (err < 0)
>- goto st_press_common_probe_error;
>+ return err;
>
> pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS;
>- pdata->multiread_bit = pdata->sensor->multi_read_bit;
>- indio_dev->channels = pdata->sensor->ch;
>- indio_dev->num_channels = pdata->sensor->num_ch;
>+ pdata->multiread_bit = pdata->sensor->multi_read_bit;
>+ indio_dev->channels = pdata->sensor->ch;
>+ indio_dev->num_channels = pdata->sensor->num_ch;
>
> if (pdata->sensor->fs.addr != 0)
> pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
>@@ -248,32 +250,27 @@ int st_press_common_probe(struct iio_dev
>*indio_dev)
>
> err = st_sensors_init_sensor(indio_dev);
> if (err < 0)
>- goto st_press_common_probe_error;
>+ return err;
>
>- if (pdata->get_irq_data_ready(indio_dev) > 0) {
>+ if (irq > 0) {
> err = st_press_allocate_ring(indio_dev);
> if (err < 0)
>- goto st_press_common_probe_error;
>+ return err;
>
> err = st_sensors_allocate_trigger(indio_dev,
>- ST_PRESS_TRIGGER_OPS);
>- if (err < 0)
>- goto st_press_probe_trigger_error;
>+ ST_PRESS_TRIGGER_OPS);
>+ if (err < 0) {
>+ st_press_deallocate_ring(indio_dev);
>+ return err;
>+ }
> }
>
> err = iio_device_register(indio_dev);
>- if (err)
>- goto st_press_device_register_error;
>-
>- return err;
>-
>-st_press_device_register_error:
>- if (pdata->get_irq_data_ready(indio_dev) > 0)
>+ if (err && irq > 0) {
> st_sensors_deallocate_trigger(indio_dev);
>-st_press_probe_trigger_error:
>- if (pdata->get_irq_data_ready(indio_dev) > 0)
> st_press_deallocate_ring(indio_dev);
>-st_press_common_probe_error:
>+ }
>+
> return err;
> }
> EXPORT_SYMBOL(st_press_common_probe);
--
Sent from my Android phone with K-9 Mail. Please excuse my brevity.
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