From nobody Sat Oct 4 06:35:24 2025 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (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 4594827876E; Tue, 19 Aug 2025 11:22:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755602545; cv=pass; b=hTCpIOWGEuyKQ/aWKdHNlgcmOC8DB8+R+uUBMECWcmyX/4ociGRIATs4R5BuqJl2UgEngDIoLj1OGRJVda6WsODfYhhz5yvJThJNvrC02meydhBr+7Nqe2hKea3tXiHh4bbjtp4UUtLF1P3YrN9N2vid4Xme0zmVqARo+ogQmxA= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755602545; c=relaxed/simple; bh=PwxyD5Nd4Inf8ouIOSPYmKwVDesQhiuJ04jPckGEnDg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=tuSaEKi0Ipoj9BuLicaCCRPhuwcJZ5EtJsXTPeBU5RS1tJvOsfLROifVBbhiCNqjBw/x7f2fR3N9kZa0hNk/+oiOPqMkTvAFngUUzOCsePyTO72usepkOtJlol4vuqeH0U5wmoGvwaN1kbdHKer7zEmTLA9c6K7kmhDX64FfSUs= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b=gE6XjuLL; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="gE6XjuLL" ARC-Seal: i=1; a=rsa-sha256; t=1755602528; cv=none; d=zohomail.com; s=zohoarc; b=U6mim+bj1DPuhw+mUqGMsaZIBQpViqTSNcsjW1k6mqrfip4/xz6tmvNEQXvmYGNbJvqjTteqkAzG6YYe7EeJ0oACJlg74QyOpfFR7l4ZfpHi99ajVjtoEFPWctPdogxJozHkLjMFZUmFTbHjSdlhZng8eyXxCFzP3ZtrgUpkrV4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1755602528; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:MIME-Version:Message-ID:Subject:Subject:To:To:Message-Id:Reply-To; bh=ceXQjJPZTjxdNgGeYxtuRD2GWkq7Nnr+y3XAJ3hERGc=; b=HC7BT6cLRtDpd8eAZva6lW6GmtfitIRgWkQeiPJPieDlCfug/rb0qHZhYVtuGo7g+GKJ6BbZTrWimf4EibVubG916ezXPzUCgWNqskaz8grP6OH0ay4/haiMdhkvXMrbcxjI+By9qHdK9KNsJZXJzhg/NG8suwzjS2vMuE9ZDCQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1755602528; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:To:To:Cc:Cc:Reply-To; bh=ceXQjJPZTjxdNgGeYxtuRD2GWkq7Nnr+y3XAJ3hERGc=; b=gE6XjuLLjtBAdC9wso2XRrgBBJPvPoiTOGKbmiXrft0GnskTx2C7+qwqJBka5JYc hmEq7sbQII8WQYi5zhED0HNLNv2U8YPakBzPl8kLLi4PMq1fa3XZMnL7E9r7HUajJ6S Ch8QUiN5vNk+KYe3Zgs+fXHTPFFo6cqBVq6pEnPQ= Received: by mx.zohomail.com with SMTPS id 1755602526685939.769654379773; Tue, 19 Aug 2025 04:22:06 -0700 (PDT) From: Nicolas Frattaroli Date: Tue, 19 Aug 2025 13:21:42 +0200 Subject: [PATCH] cpufreq: mediatek-hw: don't use error path on NULL fdvfs 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: <20250819-mt8196-cpufreq-fix-v1-1-adb60a3082dc@collabora.com> X-B4-Tracking: v=1; b=H4sIAEVepGgC/zWMwQrDIBBEf0X23AUVTNr8SsnB2rXdgyZVUwIh/ 94loZeBN8y8DSoVpgqD2qDQlytPWcBcFIS3zy9CfgqD1dbpq7lhapIdhnmJhT4YeUXdO9eH4C1 FA3KcC0l9SO/jyTJdxN3OEh6+EoYpJW6DyrQ2/Pth3PcfO849wJUAAAA= X-Change-ID: 20250819-mt8196-cpufreq-fix-07557cca2ef1 To: Dan Carpenter , "Rafael J. Wysocki" , Viresh Kumar , Matthias Brugger , AngeloGioacchino Del Regno Cc: kernel@collabora.com, AngeloGioacchino Del Regno , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Nicolas Frattaroli X-Mailer: b4 0.14.2 The IS_ERR_OR_NULL check for priv->fdvfs is inappropriate, and should be an IS_ERR check instead, as a NULL value here would propagate it to PTR_ERR. In practice, there is no problem here, as devm_of_iomap cannot return NULL in any circumstance. However, it causes a Smatch static checker warning. Fix the warning by changing the check from IS_ERR_OR_NULL to IS_ERR. Fixes: 32e0d669f3ac ("cpufreq: mediatek-hw: Add support for MT8196") Reported-by: Dan Carpenter Closes: https://lore.kernel.org/linux-pm/aKQubSEXH1TXQpnR@stanley.mountain/ Signed-off-by: Nicolas Frattaroli --- drivers/cpufreq/mediatek-cpufreq-hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/mediatek-cpufreq-hw.c b/drivers/cpufreq/mediat= ek-cpufreq-hw.c index e4eadce6f937ceff51b34d22da83c51b4e9aa813..fce5aa5ceea033bb70537ad9280= e9ee02e3671cc 100644 --- a/drivers/cpufreq/mediatek-cpufreq-hw.c +++ b/drivers/cpufreq/mediatek-cpufreq-hw.c @@ -72,7 +72,7 @@ static const struct mtk_cpufreq_variant cpufreq_mtk_base_= variant =3D { static int mtk_cpufreq_hw_mt8196_init(struct mtk_cpufreq_priv *priv) { priv->fdvfs =3D devm_of_iomap(priv->dev, priv->dev->of_node, 0, NULL); - if (IS_ERR_OR_NULL(priv->fdvfs)) + if (IS_ERR(priv->fdvfs)) return dev_err_probe(priv->dev, PTR_ERR(priv->fdvfs), "failed to get fdvfs iomem\n"); =20 --- base-commit: 73df59e80dc7cab098b4581b89459d18f8410c7d change-id: 20250819-mt8196-cpufreq-fix-07557cca2ef1 Best regards, --=20 Nicolas Frattaroli