linux-kernel - [PATCH AUTOSEL 4.9 20/20] clk: st: Fix memory leak in st_of_quadfs

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Date:   Sun, 18 Dec 2022 11:23:05 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Xiu Jianfeng <xiujianfeng@...wei.com>,
        Patrice Chotard <patrice.chotard@...s.st.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Sasha Levin <sashal@...nel.org>, mturquette@...libre.com,
        windhl@....com, avolmat@...com, linux-clk@...r.kernel.org
Subject: [PATCH AUTOSEL 4.9 20/20] clk: st: Fix memory leak in st_of_quadfs_setup()

From: Xiu Jianfeng <xiujianfeng@...wei.com>

[ Upstream commit cfd3ffb36f0d566846163118651d868e607300ba ]

If st_clk_register_quadfs_pll() fails, @lock should be freed before goto
@err_exit, otherwise will cause meory leak issue, fix it.

Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
Link: https://lore.kernel.org/r/20221122133614.184910-1-xiujianfeng@huawei.com
Reviewed-by: Patrice Chotard <patrice.chotard@...s.st.com>
Signed-off-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/clk/st/clkgen-fsyn.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c
index 14819d919df1..715c5d3a5cde 100644
--- a/drivers/clk/st/clkgen-fsyn.c
+++ b/drivers/clk/st/clkgen-fsyn.c
@@ -948,9 +948,10 @@ static void __init st_of_quadfs_setup(struct device_node *np,
 
 	clk = st_clk_register_quadfs_pll(pll_name, clk_parent_name, data,
 			reg, lock);
-	if (IS_ERR(clk))
+	if (IS_ERR(clk)) {
+		kfree(lock);
 		goto err_exit;
-	else
+	} else
 		pr_debug("%s: parent %s rate %u\n",
 			__clk_get_name(clk),
 			__clk_get_name(clk_get_parent(clk)),
-- 
2.35.1