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iio: inkern: fix a static checker error

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Avoid this smatch error:
drivers/iio/inkern.c:751 iio_read_avail_channel_raw() error: double unlock 'mutex:&chan->indio_dev->info_exist_lock'

Fixes: 00c5f80c2f ("iio: inkern: add helpers to query available values from channels")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Peter Rosin 2017-04-20 23:01:57 +02:00 committed by Jonathan Cameron
parent 9a043b0bf2
commit c773f70015
1 changed files with 1 additions and 3 deletions
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4
drivers/iio/inkern.c
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@ -750,11 +750,9 @@ int iio_read_avail_channel_raw(struct iio_channel *chan,
err_unlock:
mutex_unlock(&chan->indio_dev->info_exist_lock);
if (ret >= 0 && type != IIO_VAL_INT) {
if (ret >= 0 && type != IIO_VAL_INT)
/* raw values are assumed to be IIO_VAL_INT */
ret = -EINVAL;
goto err_unlock;
}
return ret;
}