linux-kernel - [PATCH] clk: st: clkgen-pll: Fix a memory leak in clkgen_odf

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Message-Id: <20260115045524.640427-1-lihaoxiang@isrc.iscas.ac.cn>
Date: Thu, 15 Jan 2026 12:55:24 +0800
From: Haoxiang Li <lihaoxiang@...c.iscas.ac.cn>
To: mturquette@...libre.com,
	sboyd@...nel.org,
	bmasney@...hat.com,
	mturquette@...aro.org,
	pankaj.dev@...com,
	gabriel.fernandez@...com
Cc: linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Haoxiang Li <lihaoxiang@...c.iscas.ac.cn>,
	stable@...r.kernel.org
Subject: [PATCH] clk: st: clkgen-pll: Fix a memory leak in clkgen_odf_register()

If clk_register_composite() fails, call kfree() to release
div and gate.

Fixes: b9b8e614b580 ("clk: st: Support for PLLs inside ClockGenA(s)")
Cc: stable@...r.kernel.org
Signed-off-by: Haoxiang Li <lihaoxiang@...c.iscas.ac.cn>
---
 drivers/clk/st/clkgen-pll.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c
index c258ff87a171..a7d605b52cf3 100644
--- a/drivers/clk/st/clkgen-pll.c
+++ b/drivers/clk/st/clkgen-pll.c
@@ -742,8 +742,11 @@ static struct clk * __init clkgen_odf_register(const char *parent_name,
 				     &div->hw, &clk_divider_ops,
 				     &gate->hw, &clk_gate_ops,
 				     flags);
-	if (IS_ERR(clk))
+	if (IS_ERR(clk)) {
+		kfree(div);
+		kfree(gate);
 		return clk;
+	}
 
 	pr_debug("%s: parent %s rate %lu\n",
 			__clk_get_name(clk),
-- 
2.25.1