From nobody Mon Feb 9 18:22:08 2026 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.2]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B18B9253331; Mon, 24 Feb 2025 10:01:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740391274; cv=none; b=JWOv9t8CD1EBGUnf7lignXFtce4z37+nFbSmw6s9o9wbv6PlgAG+VF5eTxIZFRSdPG0Jo9iYdhPSXkEK+OT7oyghSjTR5852ZlptC89AeE3j30cX2XL343K+OC9e7Hr4HlAsTRYlh6ngqXUWGyjklWcDK9Gr6M3ZKXeBoXZMwpI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740391274; c=relaxed/simple; bh=TCvVXCiHDk1V9rJ9VKwPE1xm0gPbe3PuqAGQcLSGzkA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=upmRnW4b4LO4yF0ClF/j85a2lFZW6zd9na2GgWvFFDQx3hNJWuCFy0yxfga0TEDi0cG8U1Hj7EE6bpMy0zt05jO2TqmFXUSf6aR5Sf/Pvi7aUESaQio2lZ2uhKK5Il4acBqVKrhnivlJo4KqCyLlXUER9Ai+6RJw4JZT2zPMEzY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=e01OUvCH; arc=none smtp.client-ip=220.197.31.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="e01OUvCH" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=+p/OR 7YcspT2G+MDz+AMaNq8fZXBgvWQLH5OgUJixfo=; b=e01OUvCHWfx+0hTSnwyHC abvo8HqBNPWEJCgEMIN7h+Xp0JIzjHRuEHlneqMs1IOKscVLlxM17Q8hWx5db/nA CBbREVRkKyr1rJdnc76gg9PbCo5ijjRg4r7EC0l/XKHvpKtU8upBWWBZKTfmNHsa ly4DaOt28XAJtUUFAgfQsM= Received: from icess-ProLiant-DL380-Gen10.. (unknown []) by gzga-smtp-mtada-g1-0 (Coremail) with SMTP id _____wD3V0IrQ7xnddvNOQ--.893S4; Mon, 24 Feb 2025 18:00:12 +0800 (CST) From: Haoxiang Li To: andy@kernel.org, geert@linux-m68k.org, haoxiang_li2024@163.com, u.kleine-koenig@pengutronix.de, erick.archer@outlook.com, ojeda@kernel.org, w@1wt.eu, poeschel@lemonage.de Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH] auxdisplay: hd44780: Fix an API misuse in hd44780_remove() Date: Mon, 24 Feb 2025 18:00:09 +0800 Message-Id: <20250224100009.2968190-1-haoxiang_li2024@163.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wD3V0IrQ7xnddvNOQ--.893S4 X-Coremail-Antispam: 1Uf129KBjvdXoWrKr4xtw4rJryxXw45WF45Jrb_yoW3XrX_C3 Wrurs7GF4UAr1Fqwn5tFsxury8t3W2qrn3Z3ZFva93XryUuFsFqry7Xwn5Gas8ZFWIyr9x A3Z5WFWDCa17ZjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRRApnDUUUUU== X-CM-SenderInfo: xkdr5xpdqjszblsqjki6rwjhhfrp/xtbBkBn9bme8O3-B8AAAs0 Content-Type: text/plain; charset="utf-8" Fix this by using charlcd_free() instead of kfree(). Fixes: 718e05ed92ec ("auxdisplay: Introduce hd44780_common.[ch]") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li --- drivers/auxdisplay/hd44780.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c index 0526f0d90a79..fcd3780ce5d1 100644 --- a/drivers/auxdisplay/hd44780.c +++ b/drivers/auxdisplay/hd44780.c @@ -328,7 +328,7 @@ static void hd44780_remove(struct platform_device *pdev) kfree(hdc->hd44780); kfree(lcd->drvdata); =20 - kfree(lcd); + charlcd_free(lcd); } =20 static const struct of_device_id hd44780_of_match[] =3D { --=20 2.25.1