On Tue, Mar 21, 2017 at 09:32:06PM +0530, Gargi Sharma wrote:
> 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>
Just sent yesterday too!
> ---
> 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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