linux-kernel - [PATCH 5.12 286/296] thermal/drivers/qcom: Fix error code in adc_tm5_get_dt_channel

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Message-Id: <20210531130713.331981212@linuxfoundation.org>
Date:   Mon, 31 May 2021 15:15:41 +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, Hulk Robot <hulkci@...wei.com>,
        Yang Yingliang <yangyingliang@...wei.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 286/296] thermal/drivers/qcom: Fix error code in adc_tm5_get_dt_channel_data()

From: Yang Yingliang <yangyingliang@...wei.com>

[ Upstream commit 5d8db38ad7660e4d78f4e2a63f14336f31f07a63 ]

Return -EINVAL when args is invalid instead of 'ret' which is set to
zero by a previous successful call to a function.

Fixes: ca66dca5eda6 ("thermal: qcom: add support for adc-tm5 PMIC thermal monitor")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Link: https://lore.kernel.org/r/20210527092640.2070555-1-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/thermal/qcom/qcom-spmi-adc-tm5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/qcom-spmi-adc-tm5.c b/drivers/thermal/qcom/qcom-spmi-adc-tm5.c
index b460b56e981c..232fd0b33325 100644
--- a/drivers/thermal/qcom/qcom-spmi-adc-tm5.c
+++ b/drivers/thermal/qcom/qcom-spmi-adc-tm5.c
@@ -441,7 +441,7 @@ static int adc_tm5_get_dt_channel_data(struct adc_tm5_chip *adc_tm,
 
 	if (args.args_count != 1 || args.args[0] >= ADC5_MAX_CHANNEL) {
 		dev_err(dev, "%s: invalid ADC channel number %d\n", name, chan);
-		return ret;
+		return -EINVAL;
 	}
 	channel->adc_channel = args.args[0];
 
-- 
2.30.2