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| author | Gargi Sharma | 2017-03-20 09:30:42 +0100 |
|---|---|---|
| committer | Jonathan Cameron | 2017-03-23 20:43:36 +0100 |
| commit | 66893ea3757ceb2a95b57ac0fec6632003155f5b (patch) | |
| tree | 9a798bc47dd0c43f36b2d8f3b1cbee433400e558 /drivers/staging/iio/accel/adis16203.c | |
| parent | staging: iio: cdc: ad7746: Fix alignment with paranthesis (diff) | |
| download | kernel-qcow2-linux-66893ea3757ceb2a95b57ac0fec6632003155f5b.tar.gz kernel-qcow2-linux-66893ea3757ceb2a95b57ac0fec6632003155f5b.tar.xz kernel-qcow2-linux-66893ea3757ceb2a95b57ac0fec6632003155f5b.zip | |
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: Gargi Sharma <gs051095@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/staging/iio/accel/adis16203.c')
| -rw-r--r-- | drivers/staging/iio/accel/adis16203.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/staging/iio/accel/adis16203.c b/drivers/staging/iio/accel/adis16203.c index b59755aedd8b..faa2869b5431 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; |