linux-kernel - [PATCH] soc: imx: imx93-pd: Fix the error handling path of imx93_pd

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Message-Id: <717cb5dee892bc01257d52b10bb9a1ee79ced87f.1666418916.git.christophe.jaillet@wanadoo.fr>
Date:   Sat, 22 Oct 2022 08:08:55 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Peng Fan <peng.fan@....com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] soc: imx: imx93-pd: Fix the error handling path of imx93_pd_probe()

In imx93_pd_probe(); if an error occurs, some resources need to be released
as done in the remove function.

Fixes: 0a0f7cc25d4a ("soc: imx: add i.MX93 SRC power domain driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/soc/imx/imx93-pd.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/imx/imx93-pd.c b/drivers/soc/imx/imx93-pd.c
index 1f3d7039c1de..4d235c8c4924 100644
--- a/drivers/soc/imx/imx93-pd.c
+++ b/drivers/soc/imx/imx93-pd.c
@@ -135,11 +135,24 @@ static int imx93_pd_probe(struct platform_device *pdev)
 
 	ret = pm_genpd_init(&domain->genpd, NULL, domain->init_off);
 	if (ret)
-		return ret;
+		goto err_clk_unprepare;
 
 	platform_set_drvdata(pdev, domain);
 
-	return of_genpd_add_provider_simple(np, &domain->genpd);
+	ret = of_genpd_add_provider_simple(np, &domain->genpd);
+	if (ret)
+		goto err_genpd_remove;
+
+	return 0;
+
+err_genpd_remove:
+	pm_genpd_remove(&domain->genpd);
+
+err_clk_unprepare:
+	if (!domain->init_off)
+		clk_bulk_disable_unprepare(domain->num_clks, domain->clks);
+
+	return ret;
 }
 
 static const struct of_device_id imx93_pd_ids[] = {
-- 
2.34.1