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iio: dac: ad5592r: Fix the missing return value.

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commit b55b38f7cc12da3b9ef36e7a3b7f8f96737df4d5 upstream.

The third call to `fwnode_property_read_u32` did not record
the return value, resulting in `channel_offstate` possibly
being assigned the wrong value.

Fixes: 56ca9db862 ("iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs")
Signed-off-by: Zizhuang Deng <sunsetdzz@gmail.com>
Link: https://lore.kernel.org/r/20220310125450.4164164-1-sunsetdzz@gmail.com
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:
Zizhuang Deng 2022-03-10 20:54:50 +08:00 • committed by Greg Kroah-Hartman
commit 1aea30f87c
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/dac/ad5592r-base.c
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@ -530,7 +530,7 @@ static int ad5592r_alloc_channels(struct ad5592r_state *st)
if (!ret)
st->channel_modes[reg] = tmp;
fwnode_property_read_u32(child, "adi,off-state", &tmp);
ret = fwnode_property_read_u32(child, "adi,off-state", &tmp);
if (!ret)
st->channel_offstate[reg] = tmp;
}