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

Commit 099c4cef authored by Aishwarya Pant's avatar Aishwarya Pant Committed by Jonathan Cameron
Browse files

staging: iio: accel: adis16201: remove iio_dev mlock 



In the driver adis16201 read raw does not require an iio_dev->mlock for
reads. It can run concurrently as adis_read_reg_16() is protected by a
transaction lock.

Signed-off-by: default avatarAishwarya Pant <aishpant@gmail.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 2e2c8d22

drivers/staging/iio/accel/adis16201.c

+1 −5
Original line number Diff line number Diff line
@@ -223,17 +223,13 @@ static int adis16201_read_raw(struct iio_dev *indio_dev, 
		default:

			return -EINVAL;

		}

		mutex_lock(&indio_dev->mlock);

		addr = adis16201_addresses[chan->scan_index];

		ret = adis_read_reg_16(st, addr, &val16);

		if (ret) {

			mutex_unlock(&indio_dev->mlock);

		if (ret)

			return ret;

		}

		val16 &= (1 << bits) - 1;

		val16 = (s16)(val16 << (16 - bits)) >> (16 - bits);

		*val = val16;

		mutex_unlock(&indio_dev->mlock);

		return IIO_VAL_INT;

	}

	return -EINVAL;