linux-kernel - [PATCH v2 1/5] clk: imx: imx8: Fix an error handling path in clk_imx_acm_attach_pm

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Message-Id: <ced98eb9416ded902f3896ba58fee72991864e26.1694722339.git.christophe.jaillet@wanadoo.fr>
Date:   Thu, 14 Sep 2023 22:31:02 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     abelvesa@...nel.org, peng.fan@....com, mturquette@...libre.com,
        sboyd@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        shengjiu.wang@....com
Cc:     linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH v2 1/5] clk: imx: imx8: Fix an error handling path in clk_imx_acm_attach_pm_domains()

If a dev_pm_domain_attach_by_id() call fails, previously allocated
resources need to be released.

Fixes: d3a0946d7ac9 ("clk: imx: imx8: add audio clock mux driver")
Reviewed-by: Peng Fan <peng.fan@....com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/clk/imx/clk-imx8-acm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/imx/clk-imx8-acm.c b/drivers/clk/imx/clk-imx8-acm.c
index 1e82f72b75c6..87025a6772d0 100644
--- a/drivers/clk/imx/clk-imx8-acm.c
+++ b/drivers/clk/imx/clk-imx8-acm.c
@@ -279,8 +279,10 @@ static int clk_imx_acm_attach_pm_domains(struct device *dev,
 
 	for (i = 0; i < dev_pm->num_domains; i++) {
 		dev_pm->pd_dev[i] = dev_pm_domain_attach_by_id(dev, i);
-		if (IS_ERR(dev_pm->pd_dev[i]))
-			return PTR_ERR(dev_pm->pd_dev[i]);
+		if (IS_ERR(dev_pm->pd_dev[i])) {
+			ret = PTR_ERR(dev_pm->pd_dev[i]);
+			goto detach_pm;
+		}
 
 		dev_pm->pd_dev_link[i] = device_link_add(dev,
 							 dev_pm->pd_dev[i],
-- 
2.34.1