From nobody Fri Sep 25 14:31:50 2026 Received: from mail-m49198.qiye.163.com (mail-m49198.qiye.163.com [45.254.49.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 297E33EA963; Fri, 11 Sep 2026 06:09:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.254.49.198 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789106970; cv=none; b=gOhCSBNoQ61n1xtsHuO3PcagevNxYD++Ou+YDfGmULz9EuDM+wBkulyfGZ9toPp2Ll0tJK7cRgKoFlG668OrL2QpPlWHPS3aZaqcxBHSXwBhUSxeu0Ll4wuSvzAe4jg+V/5PxOKmbzmLY16OY5UtZI/znOOfLYCqNrw6eEe3RKk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789106970; c=relaxed/simple; bh=/d19UCf96Cjuu9WwPQCjyH7tSj4B2fhjZeME/sK3eLs=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=UqMqPf3a3bVlfAPvFcsCQncOvPEzgRjlkCA7ZSwVjMFY4TsAI05FKbmmXz5CQeoHCzh1GtUFSWjwgq85Bf5cD26zgTg5C0zUNyX7RCcmumjXVlFmJYRAdoxZdKVZVoMXXLF8vBN8o5BGhAi+d/xIE25rvB7ZrC5FTtVg6zyBd08= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=seu.edu.cn; spf=pass smtp.mailfrom=seu.edu.cn; dkim=pass (1024-bit key) header.d=seu.edu.cn header.i=@seu.edu.cn header.b=a4kXgqe7; arc=none smtp.client-ip=45.254.49.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=seu.edu.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=seu.edu.cn Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=seu.edu.cn header.i=@seu.edu.cn header.b="a4kXgqe7" Received: from seu.edu.cn (unknown [221.228.238.82]) by smtp.qiye.163.com (Hmail) with ESMTP id 4d62c4fb5; Fri, 11 Sep 2026 14:09:19 +0800 (GMT+08:00) From: Slavin Liu To: biju.das.jz@bp.renesas.com, sboyd@kernel.org, bmasney+clk@redhat.com, jbrunet+clk@baylibre.com Cc: linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, bolin.liu@seu.edu.cn Subject: [PATCH RFC] clk: versaclock7: propagate all xin lookup failures Date: Fri, 11 Sep 2026 14:09:18 +0800 Message-Id: <20260911060918.94343-1-bolin.liu@seu.edu.cn> X-Mailer: git-send-email 2.34.1 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-HM-Tid: 0aa08f15b4a203a1kunm75fda27f1c7343 X-HM-MType: 10 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVlDHUJMVhkeSE1MGUwZHkpPGVYeHw 5VEwETFhoSFyQUDg9ZV1kYEgtZQVlJSUpVSUlDVUlIQ1VDSVlXWRYaDxIVHRRZQVlPS0hVSktJQk NDTFVKS0tVS1kG DKIM-Signature: a=rsa-sha256; b=a4kXgqe7AZYRME7fKqv100IzTMaAxInKFu2YhbRcf59DZr1lG3JL/X2v+GzH2bT1CcHk8xxmlt/gyraC0r9se7BulfMxb2wUJfAdqXCgf0zplcGctCpsCdmcFLYn44ItOvMizwodVfe0bfUrOf6r1WCxqKcpAlV01Ni5NpFjh/U=; c=relaxed/relaxed; s=default; d=seu.edu.cn; v=1; bh=cTU7Yfjzu1O6TPbDrXH38ElIx3aHmrJBn1VAPbJi6hY=; h=date:mime-version:subject:message-id:from; Content-Type: text/plain; charset="utf-8" The xin clock is used to obtain the APLL reference rate. Handle all lookup errors, not only probe deferral, before clk_get_rate() can see an error pointer. Detected by static analysis and reviewed with AI-assisted source auditing. Fixes: 48c5e98fedd9 ("clk: Renesas versaclock7 ccf device driver") Assisted-by: LLM Signed-off-by: Slavin Liu --- drivers/clk/clk-versaclock7.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/clk-versaclock7.c b/drivers/clk/clk-versaclock7.c index 1340d2f512be..5f32d3fb807a 100644 --- a/drivers/clk/clk-versaclock7.c +++ b/drivers/clk/clk-versaclock7.c @@ -1117,8 +1117,8 @@ static int vc7_probe(struct i2c_client *client) vc7->chip_info =3D i2c_get_match_data(client); =20 vc7->pin_xin =3D devm_clk_get(&client->dev, "xin"); - if (PTR_ERR(vc7->pin_xin) =3D=3D -EPROBE_DEFER) { - return dev_err_probe(&client->dev, -EPROBE_DEFER, + if (IS_ERR(vc7->pin_xin)) { + return dev_err_probe(&client->dev, PTR_ERR(vc7->pin_xin), "xin not specified\n"); }