adis16203_read_raw does not need lock for IIO_CHAN_INFO_CALIBBIAS
since adis_read_reg_16 is already atomic and nothing else needs to be
protected.
Signed-off-by: Gargi Sharma <gs051095@xxxxxxxxx>
---
drivers/staging/iio/accel/adis16203.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/staging/iio/accel/adis16203.c b/drivers/staging/iio/accel/adis16203.c
index 68189ad..14fe2d3 100644
--- a/drivers/staging/iio/accel/adis16203.c
+++ b/drivers/staging/iio/accel/adis16203.c
@@ -203,17 +203,14 @@ static int adis16203_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
bits = 14;
- mutex_lock(&indio_dev->mlock);
addr = adis16203_addresses[chan->scan_index];
ret = adis_read_reg_16(st, addr, &val16);
if (ret) {
- mutex_unlock(&indio_dev->mlock);
return ret;
}
val16 &= (1 << bits) - 1;
val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);
*val = val16;
- mutex_unlock(&indio_dev->mlock);
return IIO_VAL_INT;
default:
return -EINVAL;
--
2.7.4
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