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* [PATCH v2 -next] iio: adc: ad7793: Add missing error code in ad7793_setup()
@ 2021-05-14  8:02 YueHaibing
  2021-05-16  9:17 ` Jonathan Cameron
  0 siblings, 1 reply; 2+ messages in thread
From: YueHaibing @ 2021-05-14  8:02 UTC (permalink / raw)
  To: lars, Michael.Hennerich, jic23, yuehaibing, gregkh
  Cc: linux-iio, linux-kernel

Set error code while device ID query failed.

Fixes: 88bc30548aae ("IIO: ADC: New driver for AD7792/AD7793 3 Channel SPI ADC")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
v2: use ENODEV instead of EINVAL

 drivers/iio/adc/ad7793.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 5e980a06258e..b4f9ac3838e1 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -279,6 +279,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
 	id &= AD7793_ID_MASK;
 
 	if (id != st->chip_info->id) {
+		ret = -ENODEV;
 		dev_err(&st->sd.spi->dev, "device ID query failed\n");
 		goto out;
 	}
-- 
2.17.1


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