linux-kernel - [PATCH 5.19 0952/1157] cpufreq: mediatek: fix error return code in mtk_cpu_dvfs_info

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Message-Id: <20220815180517.672880886@linuxfoundation.org>
Date:   Mon, 15 Aug 2022 20:05:08 +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>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Rex-BC Chen <rex-bc.chen@...iatek.com>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.19 0952/1157] cpufreq: mediatek: fix error return code in mtk_cpu_dvfs_info_init()

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

[ Upstream commit 72d67d6b3447303a441a8cedc34f7224b75f64b5 ]

If regulator_get_voltage() fails, it should return the error code in
mtk_cpu_dvfs_info_init().

Fixes: 0daa47325bae ("cpufreq: mediatek: Link CCI device to CPU")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Reviewed-by: Rex-BC Chen <rex-bc.chen@...iatek.com>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/cpufreq/mediatek-cpufreq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
index 76f6b3884e6b..7f2680bc9a0f 100644
--- a/drivers/cpufreq/mediatek-cpufreq.c
+++ b/drivers/cpufreq/mediatek-cpufreq.c
@@ -478,6 +478,7 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
 	if (info->soc_data->ccifreq_supported) {
 		info->vproc_on_boot = regulator_get_voltage(info->proc_reg);
 		if (info->vproc_on_boot < 0) {
+			ret = info->vproc_on_boot;
 			dev_err(info->cpu_dev,
 				"invalid Vproc value: %d\n", info->vproc_on_boot);
 			goto out_disable_inter_clock;
-- 
2.35.1