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From 4ed243b1da169bcbc1ec5507867e56250c5f1ff9 Mon Sep 17 00:00:00 2001
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From: YueHaibing <yuehaibing@huawei.com>
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Date: Fri, 14 May 2021 16:02:54 +0800
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Subject: [PATCH] iio: adc: ad7793: Add missing error code in ad7793_setup()
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Git-commit: 4ed243b1da169bcbc1ec5507867e56250c5f1ff9
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Patch-mainline: v5.13-rc4
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References: git-fixes
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Set error code while device ID query failed.
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Fixes: 88bc30548aae ("IIO: ADC: New driver for AD7792/AD7793 3 Channel SPI ADC")
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Signed-off-by: YueHaibing <yuehaibing@huawei.com>
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Cc: <Stable@vger.kernel.org>
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Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Acked-by: Takashi Iwai <tiwai@suse.de>
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---
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 drivers/iio/adc/ad7793.c | 1 +
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 1 file changed, 1 insertion(+)
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diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
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index 5e980a06258e..440ef4c7be07 100644
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--- a/drivers/iio/adc/ad7793.c
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+++ b/drivers/iio/adc/ad7793.c
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@@ -279,6 +279,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
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 	id &= AD7793_ID_MASK;
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 	if (id != st->chip_info->id) {
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+		ret = -ENODEV;
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 		dev_err(&st->sd.spi->dev, "device ID query failed\n");
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 		goto out;
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 	}
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-- 
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2.26.2
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