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iio: adc: ad7266: Fix variable checking bug

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commit a2b86132955268b2a1703082fbc2d4832fc001b8 upstream.

The ret variable was not checked after iio_device_release_direct_mode(),
which could possibly cause errors

Fixes: c70df20e31 ("iio: adc: ad7266: claim direct mode during sensor read")
Signed-off-by: Fernando Yang <hagisf@usp.br>
Link: https://lore.kernel.org/r/20240603180757.8560-1-hagisf@usp.br
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fernando Yang 2024-06-03 15:07:54 -03:00 committed by Greg Kroah-Hartman
parent 274239d9f8
commit df188072b5
1 changed files with 2 additions and 0 deletions
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2
drivers/iio/adc/ad7266.c
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@ -157,6 +157,8 @@ static int ad7266_read_raw(struct iio_dev *indio_dev,
ret = ad7266_read_single(st, val, chan->address);
iio_device_release_direct_mode(indio_dev);
if (ret < 0)
return ret;
*val = (*val >> 2) & 0xfff;
if (chan->scan_type.sign == 's')
*val = sign_extend32(*val,