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PM / devfreq: mediatek: unlock on error in mtk_ccifreq_target()

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Call mutex_unlock(&drv->reg_lock) before returning the error code.

Link: https://lore.kernel.org/all/1bada9b2-d276-4123-bfdf-03d165569543@moroto.mountain/
Fixes: d280560198 ("PM / devfreq: mediatek: protect oop in critical session")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Dan Carpenter 2023-10-12 12:41:12 +03:00 committed by Chanwoo Choi
parent e50fa1a5ac
commit 6c29e29e4d
1 changed files with 2 additions and 1 deletions
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3
drivers/devfreq/mtk-cci-devfreq.c
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@ -146,7 +146,8 @@ static int mtk_ccifreq_target(struct device *dev, unsigned long *freq,
opp = devfreq_recommended_opp(dev, &opp_rate, 1);
if (IS_ERR(opp)) {
dev_err(dev, "failed to find opp for freq: %ld\n", opp_rate);
return PTR_ERR(opp);
ret = PTR_ERR(opp);
goto out_unlock;
}
voltage = dev_pm_opp_get_voltage(opp);