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Message-Id: <20220510130732.984949266@linuxfoundation.org>
Date: Tue, 10 May 2022 15:07:01 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Zizhuang Deng <sunsetdzz@...il.com>,
Stable@...r.kernel.org,
Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH 4.14 15/78] iio: dac: ad5592r: Fix the missing return value.
From: Zizhuang Deng <sunsetdzz@...il.com>
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: 56ca9db862bf ("iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs")
Signed-off-by: Zizhuang Deng <sunsetdzz@...il.com>
Link: https://lore.kernel.org/r/20220310125450.4164164-1-sunsetdzz@gmail.com
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/iio/dac/ad5592r-base.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -532,7 +532,7 @@ static int ad5592r_alloc_channels(struct
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;
}
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