[PATCH 31/38] iio: accel-core: st: Clean up error handling in probe()

Jonathan Cameron
2013-09-14T17:31:17Z

On 09/10/13 13:49, Lee Jones wrote:
> Reduce the amount of those unnecessary goto calls, as in most cases
> we can simply return immediately. We also only call for the IRQ number
> once and use that value throughout.
>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
...
> - if (adata->get_irq_data_ready(indio_dev) > 0) {
> + if (irq > 0) {
> err = st_accel_allocate_ring(indio_dev);
> if (err < 0)
> - goto st_accel_common_probe_error;
> + return err;
>
> err = st_sensors_allocate_trigger(indio_dev,
> ST_ACCEL_TRIGGER_OPS);
> @@ -492,18 +493,16 @@ int st_accel_common_probe(struct iio_dev *indio_dev,
> }
>
> err = iio_device_register(indio_dev);
> - if (err)
> + if (err && irq > 0)
> goto st_accel_device_register_error;
This is the same structure I moaned about earlier. Again, put the if (irq > 0) in the error handling
not here.
>
> return err;
>
> st_accel_device_register_error:
> - if (adata->get_irq_data_ready(indio_dev) > 0)
> - st_sensors_deallocate_trigger(indio_dev);
> + st_sensors_deallocate_trigger(indio_dev);
> st_accel_probe_trigger_error:
> - if (adata->get_irq_data_ready(indio_dev) > 0)
> - st_accel_deallocate_ring(indio_dev);
> -st_accel_common_probe_error:
> + st_accel_deallocate_ring(indio_dev);
> +
> return err;
> }
> EXPORT_SYMBOL(st_accel_common_probe);
>