linux-kernel - [PATCH] PM: AVS: qcom-cpr: Fix an error handling path in cpr

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Date:   Sat, 17 Dec 2022 17:05:41 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Niklas Cassel <nks@...wful.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@...aro.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Niklas Cassel <niklas.cassel@...aro.org>,
        linux-pm@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: [PATCH] PM: AVS: qcom-cpr: Fix an error handling path in cpr_probe()

If an error occurs after a successful pm_genpd_init() call, it should be
undone by a corresponding pm_genpd_remove().

Add the missing call in the error handling path, as already done in the
remove function.

Fixes: bf6910abf548 ("power: avs: Add support for CPR (Core Power Reduction)")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/soc/qcom/cpr.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/soc/qcom/cpr.c b/drivers/soc/qcom/cpr.c
index e9b854ed1bdf..144ea68e0920 100644
--- a/drivers/soc/qcom/cpr.c
+++ b/drivers/soc/qcom/cpr.c
@@ -1708,12 +1708,16 @@ static int cpr_probe(struct platform_device *pdev)
 
 	ret = of_genpd_add_provider_simple(dev->of_node, &drv->pd);
 	if (ret)
-		return ret;
+		goto err_remove_genpd;
 
 	platform_set_drvdata(pdev, drv);
 	cpr_debugfs_init(drv);
 
 	return 0;
+
+err_remove_genpd:
+	pm_genpd_remove(&drv->pd);
+	return ret;
 }
 
 static int cpr_remove(struct platform_device *pdev)
-- 
2.34.1