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[5.15,012/177] iio: dac: ad5592r: Fix the missing return value.

Message ID 20220504153054.620947004@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

gregkh@linuxfoundation.org May 4, 2022, 4:43 p.m. UTC 
From: Zizhuang Deng <sunsetdzz@gmail.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@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>
---
 drivers/iio/dac/ad5592r-base.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -523,7 +523,7 @@  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;
 	}