diff options
| -rw-r--r-- | drivers/iio/accel/bma180.c | 54 |
1 files changed, 29 insertions, 25 deletions
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index a077cc86421b..f5e26fb697a3 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -529,7 +529,6 @@ static int bma180_probe(struct i2c_client *client, { struct bma180_data *data; struct iio_dev *indio_dev; - struct iio_trigger *trig; int ret; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); @@ -553,29 +552,31 @@ static int bma180_probe(struct i2c_client *client, indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &bma180_info; - trig = iio_trigger_alloc("%s-dev%d", indio_dev->name, indio_dev->id); - if (!trig) { - ret = -ENOMEM; - goto err_chip_disable; - } + if (client->irq > 0) { + data->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name, + indio_dev->id); + if (!data->trig) { + ret = -ENOMEM; + goto err_chip_disable; + } - ret = devm_request_irq(&client->dev, client->irq, - iio_trigger_generic_data_rdy_poll, - IRQF_TRIGGER_RISING, BMA180_IRQ_NAME, trig); - if (ret) { - dev_err(&client->dev, "unable to request IRQ\n"); - goto err_trigger_free; - } + ret = devm_request_irq(&client->dev, client->irq, + iio_trigger_generic_data_rdy_poll, IRQF_TRIGGER_RISING, + BMA180_IRQ_NAME, data->trig); + if (ret) { + dev_err(&client->dev, "unable to request IRQ\n"); + goto err_trigger_free; + } - trig->dev.parent = &client->dev; - trig->ops = &bma180_trigger_ops; - iio_trigger_set_drvdata(trig, indio_dev); - data->trig = trig; - indio_dev->trig = trig; + data->trig->dev.parent = &client->dev; + data->trig->ops = &bma180_trigger_ops; + iio_trigger_set_drvdata(data->trig, indio_dev); + indio_dev->trig = data->trig; - ret = iio_trigger_register(trig); - if (ret) - goto err_trigger_free; + ret = iio_trigger_register(data->trig); + if (ret) + goto err_trigger_free; + } ret = iio_triggered_buffer_setup(indio_dev, NULL, bma180_trigger_handler, NULL); @@ -595,9 +596,10 @@ static int bma180_probe(struct i2c_client *client, err_buffer_cleanup: iio_triggered_buffer_cleanup(indio_dev); err_trigger_unregister: - iio_trigger_unregister(trig); + if (data->trig) + iio_trigger_unregister(data->trig); err_trigger_free: - iio_trigger_free(trig); + iio_trigger_free(data->trig); err_chip_disable: bma180_chip_disable(data); @@ -611,8 +613,10 @@ static int bma180_remove(struct i2c_client *client) iio_device_unregister(indio_dev); iio_triggered_buffer_cleanup(indio_dev); - iio_trigger_unregister(data->trig); - iio_trigger_free(data->trig); + if (data->trig) { + iio_trigger_unregister(data->trig); + iio_trigger_free(data->trig); + } mutex_lock(&data->mutex); bma180_chip_disable(data); |