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Mon, 26 Jan 2026 08:35:52 -0800 (PST) Received: from junjungu-PC.localdomain ([223.166.246.160]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a802f97902sm93417515ad.57.2026.01.26.08.35.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Jan 2026 08:35:51 -0800 (PST) From: Felix Gu Date: Tue, 27 Jan 2026 00:35:47 +0800 Subject: [PATCH] pinctrl: renesas: rzt2h: Fix device node leak in rzt2h_gpio_register() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260127-rzt2h-v1-1-86472e7421b8@gmail.com> X-B4-Tracking: v=1; b=H4sIAOKXd2kC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDQyMz3aKqEqMM3eSkZMtkw1RjUwsDcyWg2oKi1LTMCrA50bG1tQAVFt1 pVwAAAA== X-Change-ID: 20260126-rzt2h-cbc9c1e35807 To: Geert Uytterhoeven , Linus Walleij , Thierry Bultel , Lad Prabhakar Cc: linux-renesas-soc@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Felix Gu X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1769445349; l=1258; i=ustc.gu@gmail.com; h=from:subject:message-id; bh=Mna1b5kAz8ghjIw624fspXXdbrk3TFEMG2Cafli+uto=; b=XbKbigKNd2Wy7eO1t/EufH4otWDoSHXEWV9w8nJdG1n4sjhWiZ7S3SFMmHEwnOQQJ3zo1jT5i xvDvGVuyAapDYLDWppSuEogti5cyv2IutfS3OFUW4uiTmo7xfkvtH7j X-Developer-Key: i=ustc.gu@gmail.com; a=ed25519; pk=fjUXwmjchVN7Ja6KGP55IXOzFeCl9edaHoQIEUA+/hw= When calling of_parse_phandle_with_fixed_args(), the caller is responsible for calling of_node_put() to release the device node reference. In rzt2h_gpio_register(), the driver fails to call of_node_put() to release the reference in of_args.np, which causes a memory leak. Add the missing of_node_put() call to fix the leak. Fixes: 34d4d093077a ("pinctrl: renesas: Add support for RZ/T2H") Signed-off-by: Felix Gu --- drivers/pinctrl/renesas/pinctrl-rzt2h.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pinctrl/renesas/pinctrl-rzt2h.c b/drivers/pinctrl/rene= sas/pinctrl-rzt2h.c index 9949108a35bb..5e0586d45cb7 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzt2h.c +++ b/drivers/pinctrl/renesas/pinctrl-rzt2h.c @@ -833,6 +833,7 @@ static int rzt2h_gpio_register(struct rzt2h_pinctrl *pc= trl) if (ret) return dev_err_probe(dev, ret, "Unable to parse gpio-ranges\n"); =20 + of_node_put(of_args.np); if (of_args.args[0] !=3D 0 || of_args.args[1] !=3D 0 || of_args.args[2] !=3D pctrl->data->n_port_pins) return dev_err_probe(dev, -EINVAL, --- base-commit: ca3a02fda4da8e2c1cb6baee5d72352e9e2cfaea change-id: 20260126-rzt2h-cbc9c1e35807 Best regards, --=20 Felix Gu