linux-kernel - [PATCH 5.13 356/800] PM / devfreq: Add missing error code in devfreq_add

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Date:   Mon, 12 Jul 2021 08:06:19 +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, YueHaibing <yuehaibing@...wei.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.13 356/800] PM / devfreq: Add missing error code in devfreq_add_device()

From: YueHaibing <yuehaibing@...wei.com>

[ Upstream commit 18b380ed61f892ed06838d1f1a5124d966292ed3 ]

Set err code in the error path before jumping to the end of the function.

Fixes: 4dc3bab8687f ("PM / devfreq: Add support delayed timer for polling mode")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/devfreq/devfreq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index fe08c46642f7..28f3e0ba6cdd 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -823,6 +823,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
 	if (devfreq->profile->timer < 0
 		|| devfreq->profile->timer >= DEVFREQ_TIMER_NUM) {
 		mutex_unlock(&devfreq->lock);
+		err = -EINVAL;
 		goto err_dev;
 	}
 
-- 
2.30.2