diff --git a/drivers/staging/iio/accel/adis16201.c b/drivers/staging/iio/accel/adis16201.c
index 75652681eaa7..fbc240663621 100644
--- a/drivers/staging/iio/accel/adis16201.c
+++ b/drivers/staging/iio/accel/adis16201.c
@@ -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;