linux-kernel - [PATCH 04/11] genpd: ti: add missing of_node

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Message-Id: <20230907095521.14053-5-Julia.Lawall@inria.fr>
Date:   Thu,  7 Sep 2023 11:55:14 +0200
From:   Julia Lawall <Julia.Lawall@...ia.fr>
To:     Nishanth Menon <nm@...com>
Cc:     kernel-janitors@...r.kernel.org, Tero Kristo <kristo@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 04/11] genpd: ti: add missing of_node_put

for_each_node_with_property performs an of_node_get on
each iteration, so a break out of the loop requires an
of_node_put.

This was done using the Coccinelle semantic patch
iterators/for_each_child.cocci

Signed-off-by: Julia Lawall <Julia.Lawall@...ia.fr>

---
 drivers/genpd/ti/ti_sci_pm_domains.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff -u -p a/drivers/genpd/ti/ti_sci_pm_domains.c b/drivers/genpd/ti/ti_sci_pm_domains.c
--- a/drivers/genpd/ti/ti_sci_pm_domains.c
+++ b/drivers/genpd/ti/ti_sci_pm_domains.c
@@ -153,14 +153,18 @@ static int ti_sci_pm_domain_probe(struct
 					max_id = args.args[0];
 
 				pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
-				if (!pd)
+				if (!pd) {
+					of_node_put(np);
 					return -ENOMEM;
+				}
 
 				pd->pd.name = devm_kasprintf(dev, GFP_KERNEL,
 							     "pd:%d",
 							     args.args[0]);
-				if (!pd->pd.name)
+				if (!pd->pd.name) {
+					of_node_put(np);
 					return -ENOMEM;
+				}
 
 				pd->pd.power_off = ti_sci_pd_power_off;
 				pd->pd.power_on = ti_sci_pd_power_on;