Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 66893ea3 authored by Gargi Sharma's avatar Gargi Sharma Committed by Jonathan Cameron
Browse files

staging: adis16203: Remove locking on raw reads of IIO_CHAN_INFO_CALIBBIAS 



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: default avatarGargi Sharma <gs051095@gmail.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 745c6dad

drivers/staging/iio/accel/adis16203.c

+0 −3
Original line number Diff line number Diff line
@@ -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;