From nobody Mon Feb 9 15:29:04 2026 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.2]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 7CC60242937; Mon, 24 Feb 2025 09:54:27 +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=1740390871; cv=none; b=Yv18sNh8WSARVVAQmjQVhWm025Q4AJh6Bss+yDPDaRhrDe2ibFt+zVY2+tTa799iBqnjaaR8Iyk0wYeiMgmyhLTTUaEU9QeCWEAIfPNqEaztEYZ5voSil4kgSeG17rRUlQEnnQAbrg3QIm1IYTJcIW3uE+2hDBj60K6S72Kvoug= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740390871; c=relaxed/simple; bh=g8X99TOPL0otzcxF1N+utf6ztWrEQtdujpo+L0MLn9k=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=g1dI0ZuuVlMU2y4gMLHuJVPUVAhTBXYxOkfdIvovBkLRCBM9UVlfam9gW1H2oQr4sndtpU1jgbRg7IJzHpBcIU3FWtEjVcL8+MLJuYvxw8EEHAGPpj/bn6Y42vZ+8VHmjrPrFs1RQdUSiBJNgUTcfa5LEhzFebMjb8jZWl7SGxM= 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=GO4YtGQL; 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="GO4YtGQL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=Sh06N 4SQha47MxwITMQ5mfmDR3A2miHvY6K140EwxyQ=; b=GO4YtGQLDNdTTkgestW1X 0vnSLOEDXDA5QvtbTRxLzoPsch34UUCOnsnXWh0m1LQi7T9LOdmxF/PFBoD+RKGl dMTq1kP4uurH+k9x0aSj6NNFudD/vrBmeKrY3Z/0+ErNwfcaIDTqeQqgMvo4L1yg bidlcH4hozQd901B0ZASt0= Received: from icess-ProLiant-DL380-Gen10.. (unknown []) by gzga-smtp-mtada-g1-1 (Coremail) with SMTP id _____wD3HSQEPrxnlgK1OQ--.21200S4; Mon, 24 Feb 2025 17:38:13 +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_probe() Date: Mon, 24 Feb 2025 17:38:10 +0800 Message-Id: <20250224093810.2965667-1-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: _____wD3HSQEPrxnlgK1OQ--.21200S4 X-Coremail-Antispam: 1Uf129KBjvdXoWrKw13tr1UJw1kCw4ftw1DJrb_yoW3uFX_Ga 4ruFs3XF4jyr4UZ3s7tF4fury0qr1jqrn5ZwsFq3y3XFyUuF4xtry2qrn5Gas8ZFW8tr95 C3Z8WFZrCa17AjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRRApnDUUUUU== X-CM-SenderInfo: xkdr5xpdqjszblsqjki6rwjhhfrp/xtbBkA39bme77loMFgADs- Content-Type: text/plain; charset="utf-8" Variable "lcd" allocated by charlcd_alloc() should be released by charlcd_free(). The following patch changed kfree(lcd) to charlcd_free(lcd) to fix an API misuse. 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..a1729196bc82 100644 --- a/drivers/auxdisplay/hd44780.c +++ b/drivers/auxdisplay/hd44780.c @@ -313,7 +313,7 @@ static int hd44780_probe(struct platform_device *pdev) fail3: kfree(hd); fail2: - kfree(lcd); + charlcd_free(lcd); fail1: kfree(hdc); return ret; --=20 2.25.1