diff options
Diffstat (limited to 'drivers/iio/health/max30100.c')
| -rw-r--r-- | drivers/iio/health/max30100.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/iio/health/max30100.c b/drivers/iio/health/max30100.c index 2cca5e0519f8..a80fa9852c22 100644 --- a/drivers/iio/health/max30100.c +++ b/drivers/iio/health/max30100.c @@ -387,18 +387,21 @@ static int max30100_read_raw(struct iio_dev *indio_dev, * Temperature reading can only be acquired while engine * is running */ - mutex_lock(&indio_dev->mlock); - - if (!iio_buffer_enabled(indio_dev)) + if (iio_device_claim_buffer_mode(indio_dev)) { + /* + * Replacing -EBUSY or other error code + * returned by iio_device_claim_buffer_mode() + * because user space may rely on the current + * one. + */ ret = -EAGAIN; - else { + } else { ret = max30100_get_temp(data, val); if (!ret) ret = IIO_VAL_INT; + iio_device_release_buffer_mode(indio_dev); } - - mutex_unlock(&indio_dev->mlock); break; case IIO_CHAN_INFO_SCALE: *val = 1; /* 0.0625 */ @@ -414,8 +417,7 @@ static const struct iio_info max30100_info = { .read_raw = max30100_read_raw, }; -static int max30100_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int max30100_probe(struct i2c_client *client) { struct max30100_data *data; struct iio_dev *indio_dev; @@ -497,7 +499,7 @@ static struct i2c_driver max30100_driver = { .name = MAX30100_DRV_NAME, .of_match_table = max30100_dt_ids, }, - .probe = max30100_probe, + .probe_new = max30100_probe, .remove = max30100_remove, .id_table = max30100_id, }; |