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authorLee Jones <lee.jones@linaro.org>2013-09-16 17:02:00 +0100
committerJonathan Cameron <jic23@kernel.org>2013-09-21 19:24:06 +0100
commitf01a140ad30cb99eb3a15a6c43fde80207ce2681 (patch)
tree5ffd7b536197282c4e4780011938f8b2ab2f1423
parentcf4dd430c4cfeb2b41e2de43f3463d0a3dba2463 (diff)
iio: gyro-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@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
-rw-r--r--drivers/iio/gyro/st_gyro_core.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index e13c2b0bf3d1..9f80817182cf 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -305,8 +305,9 @@ static const struct iio_trigger_ops st_gyro_trigger_ops = {
int st_gyro_common_probe(struct iio_dev *indio_dev,
struct st_sensors_platform_data *pdata)
{
- int err;
struct st_sensor_data *gdata = iio_priv(indio_dev);
+ int irq = gdata->get_irq_data_ready(indio_dev);
+ int err;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &gyro_info;
@@ -314,7 +315,7 @@ int st_gyro_common_probe(struct iio_dev *indio_dev,
err = st_sensors_check_device_support(indio_dev,
ARRAY_SIZE(st_gyro_sensors), st_gyro_sensors);
if (err < 0)
- goto st_gyro_common_probe_error;
+ return err;
gdata->num_data_channels = ST_GYRO_NUMBER_DATA_CHANNELS;
gdata->multiread_bit = gdata->sensor->multi_read_bit;
@@ -327,12 +328,12 @@ int st_gyro_common_probe(struct iio_dev *indio_dev,
err = st_sensors_init_sensor(indio_dev, pdata);
if (err < 0)
- goto st_gyro_common_probe_error;
+ return err;
- if (gdata->get_irq_data_ready(indio_dev) > 0) {
+ if (irq > 0) {
err = st_gyro_allocate_ring(indio_dev);
if (err < 0)
- goto st_gyro_common_probe_error;
+ return err;
err = st_sensors_allocate_trigger(indio_dev,
ST_GYRO_TRIGGER_OPS);
@@ -344,15 +345,15 @@ int st_gyro_common_probe(struct iio_dev *indio_dev,
if (err)
goto st_gyro_device_register_error;
- return err;
+ return 0;
st_gyro_device_register_error:
- if (gdata->get_irq_data_ready(indio_dev) > 0)
+ if (irq > 0)
st_sensors_deallocate_trigger(indio_dev);
st_gyro_probe_trigger_error:
- if (gdata->get_irq_data_ready(indio_dev) > 0)
+ if (irq > 0)
st_gyro_deallocate_ring(indio_dev);
-st_gyro_common_probe_error:
+
return err;
}
EXPORT_SYMBOL(st_gyro_common_probe);