From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 18EFA3081CC; Mon, 13 Oct 2025 14:58:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760367520; cv=none; b=euevnnCw8DihoxHXW1EquJNaQSNGnN8jP7VlKaoYTdCIS4zjsIDcV4sTBlZ+MVP2zf8giVp0Qd6xiR4TtbWvkpCcShQpbpZVRYCIxILplZae/zcCJD3911T0dZB9QzD4i7l+AxQygATuVHix9Z3k2wYaCVtsmWbKZzLDpYD3BbA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760367520; c=relaxed/simple; bh=ROcEf038plncaEgmhp3k/rT53Uj4lxj8PUkmCW5h7Bs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DO0hvoF/F4eSEZrHyNE75l06ULczKe63eGm2wWtHR+pEXB9yffy5DsfdkWPndK3SkIrPv2NHueKga1pqH2UVU55dQJg4JV9IXdLVopJX+rhm5uLo6tblMDS49mKSkTuQSZdbDIiWLpvariQf6C7OigU5tCoragtDIeofehmd4Gs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=F4VCw27x; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="F4VCw27x" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 93A4CC4CEE7; Mon, 13 Oct 2025 14:58:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760367520; bh=ROcEf038plncaEgmhp3k/rT53Uj4lxj8PUkmCW5h7Bs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F4VCw27xJR7N4vl2ehvJ+myxWkQb6YZrqpmw4rn4SmIlkc/mVbxFfmv77Ld2tsTEa y8YfEJKHm+EVHOlKSKMnVdRsMoVBUDqF/7GSzVsIpcCFT859a3sv1oqKHOkoyc+FB5 wTbxGe3ZjI6dbp7tXrRnFf6QlxrcYhh1D9DLZhTU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Johan Hovold , Konrad Dybcio , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 6.6 041/196] cpuidle: qcom-spm: fix device and OF node leaks at probe Date: Mon, 13 Oct 2025 16:43:52 +0200 Message-ID: <20251013144316.688679306@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251013144315.184275491@linuxfoundation.org> References: <20251013144315.184275491@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold [ Upstream commit cdc06f912670c8c199d5fa9e78b64b7ed8e871d0 ] Make sure to drop the reference to the saw device taken by of_find_device_by_node() after retrieving its driver data during probe(). Also drop the reference to the CPU node sooner to avoid leaking it in case there is no saw node or device. Fixes: 60f3692b5f0b ("cpuidle: qcom_spm: Detach state machine from main SPM handling") Signed-off-by: Johan Hovold Reviewed-by: Konrad Dybcio Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/cpuidle/cpuidle-qcom-spm.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/cpuidle/cpuidle-qcom-spm.c b/drivers/cpuidle/cpuidle-qcom-spm.c index 1fc9968eae199..b6b06a510fd86 100644 --- a/drivers/cpuidle/cpuidle-qcom-spm.c +++ b/drivers/cpuidle/cpuidle-qcom-spm.c @@ -96,20 +96,23 @@ static int spm_cpuidle_register(struct device *cpuidle_dev, int cpu) return -ENODEV; saw_node = of_parse_phandle(cpu_node, "qcom,saw", 0); + of_node_put(cpu_node); if (!saw_node) return -ENODEV; pdev = of_find_device_by_node(saw_node); of_node_put(saw_node); - of_node_put(cpu_node); if (!pdev) return -ENODEV; data = devm_kzalloc(cpuidle_dev, sizeof(*data), GFP_KERNEL); - if (!data) + if (!data) { + put_device(&pdev->dev); return -ENOMEM; + } data->spm = dev_get_drvdata(&pdev->dev); + put_device(&pdev->dev); if (!data->spm) return -EINVAL; -- 2.51.0