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Date: Tue, 10 Sep 2013 13:49:32 +0100 From: Lee Jones <lee.jones@...aro.org> To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, jic23@....ac.uk Cc: arnd@...db.de, linus.walleij@...aro.org, denis.ciocca@...com, linux-iio@...r.kernel.org, Lee Jones <lee.jones@...aro.org> Subject: [PATCH 31/38] iio: accel-core: st: Clean up error handling in probe() 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@...aro.org> --- drivers/iio/accel/st_accel_core.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index 1458343..ea62291 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -452,8 +452,9 @@ static const struct iio_trigger_ops st_accel_trigger_ops = { int st_accel_common_probe(struct iio_dev *indio_dev, struct st_sensors_platform_data *plat_data) { - int err; struct st_sensor_data *adata = iio_priv(indio_dev); + int irq = adata->get_irq_data_ready(indio_dev); + int err; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &accel_info; @@ -461,7 +462,7 @@ int st_accel_common_probe(struct iio_dev *indio_dev, err = st_sensors_check_device_support(indio_dev, ARRAY_SIZE(st_accel_sensors), st_accel_sensors); if (err < 0) - goto st_accel_common_probe_error; + return err; adata->num_data_channels = ST_ACCEL_NUMBER_DATA_CHANNELS; adata->multiread_bit = adata->sensor->multi_read_bit; @@ -478,12 +479,12 @@ int st_accel_common_probe(struct iio_dev *indio_dev, err = st_sensors_init_sensor(indio_dev, plat_data); if (err < 0) - goto st_accel_common_probe_error; + return err; - 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; 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); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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