Use the new auto cleanup based locks so error paths are simpler. While at it, removed 'ret' from adis16400_write_raw() by doing return adis_write_reg_16(); instead of ret = adis_write_reg_16(); return ret; Signed-off-by: Nuno Sa <nuno.sa@xxxxxxxxxx> --- drivers/iio/imu/adis16400.c | 72 ++++++++++++++++++++++----------------------- 1 file changed, 35 insertions(+), 37 deletions(-) diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c index 3eda32e12a53..0bfd6205f5f6 100644 --- a/drivers/iio/imu/adis16400.c +++ b/drivers/iio/imu/adis16400.c @@ -497,41 +497,38 @@ static int adis16400_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long info) { struct adis16400_state *st = iio_priv(indio_dev); - int ret, sps; + int sps; switch (info) { case IIO_CHAN_INFO_CALIBBIAS: - ret = adis_write_reg_16(&st->adis, - adis16400_addresses[chan->scan_index], val); - return ret; + return adis_write_reg_16(&st->adis, + adis16400_addresses[chan->scan_index], + val); case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: /* * Need to cache values so we can update if the frequency * changes. */ - adis_dev_lock(&st->adis); - st->filt_int = val; - /* Work out update to current value */ - sps = st->variant->get_freq(st); - if (sps < 0) { - adis_dev_unlock(&st->adis); - return sps; - } + adis_dev_auto_scoped_lock(&st->adis) { + st->filt_int = val; + /* Work out update to current value */ + sps = st->variant->get_freq(st); + if (sps < 0) + return sps; - ret = __adis16400_set_filter(indio_dev, sps, - val * 1000 + val2 / 1000); - adis_dev_unlock(&st->adis); - return ret; + return __adis16400_set_filter(indio_dev, sps, + val * 1000 + val2 / 1000); + } + unreachable(); case IIO_CHAN_INFO_SAMP_FREQ: sps = val * 1000 + val2 / 1000; if (sps <= 0) return -EINVAL; - adis_dev_lock(&st->adis); - ret = st->variant->set_freq(st, sps); - adis_dev_unlock(&st->adis); - return ret; + adis_dev_auto_scoped_lock(&st->adis) + return st->variant->set_freq(st, sps); + unreachable(); default: return -EINVAL; } @@ -596,29 +593,30 @@ static int adis16400_read_raw(struct iio_dev *indio_dev, *val = st->variant->temp_offset; return IIO_VAL_INT; case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: - adis_dev_lock(&st->adis); - /* Need both the number of taps and the sampling frequency */ - ret = __adis_read_reg_16(&st->adis, - ADIS16400_SENS_AVG, - &val16); - if (ret) { - adis_dev_unlock(&st->adis); - return ret; + adis_dev_auto_scoped_lock(&st->adis) { + /* + * Need both the number of taps and the sampling + * frequency + */ + ret = __adis_read_reg_16(&st->adis, ADIS16400_SENS_AVG, + &val16); + if (ret) + return ret; + + ret = st->variant->get_freq(st); + if (ret) + return ret; } - ret = st->variant->get_freq(st); - adis_dev_unlock(&st->adis); - if (ret) - return ret; ret /= adis16400_3db_divisors[val16 & 0x07]; *val = ret / 1000; *val2 = (ret % 1000) * 1000; return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_SAMP_FREQ: - adis_dev_lock(&st->adis); - ret = st->variant->get_freq(st); - adis_dev_unlock(&st->adis); - if (ret) - return ret; + adis_dev_auto_scoped_lock(&st->adis) { + ret = st->variant->get_freq(st); + if (ret) + return ret; + } *val = ret / 1000; *val2 = (ret % 1000) * 1000; return IIO_VAL_INT_PLUS_MICRO; -- 2.45.2