linux-kernel - [PATCH] cpufreq: ti-cpufreq: fix memory leak in ti_cpufreq

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Date:   Mon, 19 Oct 2020 21:12:31 +0800
From:   Defang Bo <bodefang@....com>
To:     rjw@...ysocki.net, viresh.kumar@...aro.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Defang Bo <bodefang@....com>
Subject: [PATCH] cpufreq: ti-cpufreq: fix memory leak in ti_cpufreq_probe()

Similar to commit<05829d9431df>("cpufreq: ti-cpufreq: kfree opp_data when failure"), opp_data needs to be freed when failure, including fail_put_node.

Signed-off-by: Defang Bo <bodefang@....com>
---
 drivers/cpufreq/ti-cpufreq.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index ab0de27..f23be8f 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -342,7 +342,8 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
 	opp_data->cpu_dev = get_cpu_device(0);
 	if (!opp_data->cpu_dev) {
 		pr_err("%s: Failed to get device for CPU0\n", __func__);
-		return -ENODEV;
+		ret = ENODEV;
+		goto free_opp_data;
 	}
 
 	opp_data->opp_node = dev_pm_opp_of_get_opp_desc_node(opp_data->cpu_dev);
@@ -404,7 +405,8 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
 
 fail_put_node:
 	of_node_put(opp_data->opp_node);
-
+free_opp_data:
+	kfree(opp_data)
 	return ret;
 }
 
-- 
1.9.1