From patchwork Fri Aug 16 07:40:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 819964 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB87B1411ED for ; Fri, 16 Aug 2024 07:40:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723794053; cv=none; b=UbPcWulJhj4hRvyr/cHT0QvXDCfAzzRa0MXz9Gdp/zM3b/cEvVH3ap6B8AbEMprBmvwVlFiZ1DGSsIu2TCNKR0XUIb/cG32Q13Fw1Q4K9jQd9G1KGC8eO+Fixmla8z/BeyeRQhlcOwC+hX2jsNkAj9FPOVvxnZZf8IvfJbFIw+A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723794053; c=relaxed/simple; bh=6s2gwWxKV3mqwXT+dwK4AlJBQic8xfrisA4opFVm0UE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=cdLakRhPIN53uyZsKDQ5XTRmwGh0LQ4jqm8HjZXTJaILmyoWFO5Gj/gLwBigWvFivCxjAlKt3QruwWgDsWVAzPKYn2Aeqwn82mkiNQjY1OixMpBVBPhNNA2+fxZ+nzOb8HgxRWUer7eiAVWRBauyx4dppkF9e9I06Dd73U7k71E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=NGBXsM3y; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="NGBXsM3y" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-428243f928fso17059675e9.0 for ; Fri, 16 Aug 2024 00:40:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1723794050; x=1724398850; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=gwBGzdvPQE1+PlP2CGFn94m3kIMhbJ1ppl7JVIwU/Xs=; b=NGBXsM3yz/RmUwBn8ckcxpg0oezJcRkKyfYCcab37HzqnMVeoLYjfKKYt++IDlxWYQ n8fGKkVdGTvYvJKF8vrEhp6bWWT9BeQKqDaSKhKdcq7lzhleva4wiBA3My2Lor5+SCsO poM+MuP0oIAvBSUJ04uf/WPgTvfX3uEz8mkRc8AF+iJ7C4mJ96hauaiFKqlqcz+qBs1e yM4t96i806WmQd5ecSnU434eKaLkDQ+0jkRj5Ldt163UyyeO0njqyV5EVFXSlLLon2GI chP5lbKzR04otvxDt5+x0uz1l5Hr5dXRKDCDTerUHRAQRSnTEPY8F3/dqvY/cYUIU9JG Rt3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723794050; x=1724398850; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=gwBGzdvPQE1+PlP2CGFn94m3kIMhbJ1ppl7JVIwU/Xs=; b=aqduaTmAlKkM3ZoT0KX3NmxJjG/Z9HXrjVBCF0GKqeUOWEt+cCYTzkxVoRku+vwGuv 9Sib3ffxjUNAYpogEJ8sA/Ifqeaasbb6hTyjInoO24I4NqOZHDNPm0giwvvdH8HUtDRS OJDvxKBu2rDZPx3V8XSuDqw/vl/GQnvSuvgMBH42axbuZzRwJ95MqMsQteCl5DvMU7wk HaZ8yUSkUs83ieMlA8KHzpnw8ZOJDr9Nx+Wlqv8imFdhAme1xSUTyvMByokstlME5+Lk OMs7vCy0fnk1SQNWQ6XoBidOxedg6gSndWF6Wp1ak/R0NHxE0aR7F9pFAG5tfdBrbDqm 7XbA== X-Gm-Message-State: AOJu0Yz9kEUPAbmRoVZE3N1zJQwIQgkKeGK5gCkpUxqZiFnSLC/NGGak Hdp5qob9osH4ustD4GSMuL/NkEjWa8b6TLPiRL6wVF6sUN5xK6PNVA0mvsJPhLY= X-Google-Smtp-Source: AGHT+IHDNoBVC9DJTAN7nMWLgAJqFIpeUDbPlSUB2QVzC6f0vvEYmRzQmwtSF9FAc0KhjOO6gOsnCw== X-Received: by 2002:a05:600c:314a:b0:429:a3e:c786 with SMTP id 5b1f17b1804b1-429ed7d63efmr16437415e9.24.1723794049913; Fri, 16 Aug 2024 00:40:49 -0700 (PDT) Received: from [127.0.1.1] ([178.197.215.209]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-429ded3596esm68549625e9.22.2024.08.16.00.40.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Aug 2024 00:40:49 -0700 (PDT) From: Krzysztof Kozlowski Date: Fri, 16 Aug 2024 09:40:33 +0200 Subject: [PATCH v2 3/7] thermal: of: Use scoped device node handling to simplify of_thermal_zone_find() Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240816-b4-cleanup-h-of-node-put-thermal-v2-3-cee9fc490478@linaro.org> References: <20240816-b4-cleanup-h-of-node-put-thermal-v2-0-cee9fc490478@linaro.org> In-Reply-To: <20240816-b4-cleanup-h-of-node-put-thermal-v2-0-cee9fc490478@linaro.org> To: "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Amit Kucheria , Thara Gopinath , Thierry Reding , Jonathan Hunter , Vasily Khoruzhick , Yangtao Li , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, Chen-Yu Tsai , Krzysztof Kozlowski X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2305; i=krzysztof.kozlowski@linaro.org; h=from:subject:message-id; bh=6s2gwWxKV3mqwXT+dwK4AlJBQic8xfrisA4opFVm0UE=; b=owEBbQKS/ZANAwAKAcE3ZuaGi4PXAcsmYgBmvwJ2/xkGjrR2HLRRCkRnrdwrqzBDjdW9vwQDu 1NHmeLLv4SJAjMEAAEKAB0WIQTd0mIoPREbIztuuKjBN2bmhouD1wUCZr8CdgAKCRDBN2bmhouD 14KYD/4j35A7vHJMVva9jFQ0cMzcZ6YdZMHe6OP0JJSb8mMlKA1s1B2BsZz+nMpVUWIY+2x0H3h sGzAoiG/OvTTlK7dxg73Z14uKEXLe/Nhcfpp31/tfPazE8Qt6Is9TEEwUcs1k9p6w2xsSnTnAi2 splayRHNzbrKXwFOuZv3ZkT7j6pgxu0DClbPaZvmIx+gvOJUTX118gds8FK1oIP/ON2NfmOt6ni +x/AuGUdfVHzuk7xzuLIHLsAhAmhV/kj5IokJjSz5QZKCstDeoPDY5F9voMexvJinkW/I9znMq4 YAfRZMm/g702PbGTzd8MGXn+Nit5dejzrm6DTn+k7RXZsCSStzsHL4KCHScpD/fxUkY0SzKRVPV +69zpM0F+mqxwlz4JPuCzUqQtfg5zvE2rHcQQrP0FitAQdciBV8jcPlJ68LpjClPOW6f711Kb0P pkUrptRVLQ02NqjvEhHsW4eGB3QBBX38GI4S8I45jHGFcw1XYgpinYeCq+SsyILyAM9ah0059VC QLPvv8lNHpqm4l66+odOdUugDwPSy3YGyfNn77ZpEdOOke7FGGNWRWFBFkofev2xJua7SqG4iy6 cCcMy1kb+js5A6Y8XWzXLyZECp7oTRKQzg0whFvzwTBGjhWOTv9qlLW3ZhP1X/SWdF2fJ7z1CQv ImfcxuBeksGl/vQ== X-Developer-Key: i=krzysztof.kozlowski@linaro.org; a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Obtain the device node reference with scoped/cleanup.h to reduce error handling and make the code a bit simpler. Reviewed-by: Chen-Yu Tsai Signed-off-by: Krzysztof Kozlowski --- This depends on my earlier fixes: https://lore.kernel.org/all/20240814195823.437597-1-krzysztof.kozlowski@linaro.org/ --- drivers/thermal/thermal_of.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/drivers/thermal/thermal_of.c b/drivers/thermal/thermal_of.c index 2a50910f35d3..94cc077ab3a1 100644 --- a/drivers/thermal/thermal_of.c +++ b/drivers/thermal/thermal_of.c @@ -155,10 +155,9 @@ static struct thermal_trip *thermal_of_trips_init(struct device_node *np, int *n static struct device_node *of_thermal_zone_find(struct device_node *sensor, int id) { - struct device_node *np, *tz; struct of_phandle_args sensor_specs; - np = of_find_node_by_name(NULL, "thermal-zones"); + struct device_node *np __free(device_node) = of_find_node_by_name(NULL, "thermal-zones"); if (!np) { pr_debug("No thermal zones description\n"); return ERR_PTR(-ENODEV); @@ -176,8 +175,7 @@ static struct device_node *of_thermal_zone_find(struct device_node *sensor, int "#thermal-sensor-cells"); if (count <= 0) { pr_err("%pOFn: missing thermal sensor\n", child); - tz = ERR_PTR(-EINVAL); - goto out; + return ERR_PTR(-EINVAL); } for (i = 0; i < count; i++) { @@ -189,22 +187,18 @@ static struct device_node *of_thermal_zone_find(struct device_node *sensor, int i, &sensor_specs); if (ret < 0) { pr_err("%pOFn: Failed to read thermal-sensors cells: %d\n", child, ret); - tz = ERR_PTR(ret); - goto out; + return ERR_PTR(ret); } if ((sensor == sensor_specs.np) && id == (sensor_specs.args_count ? sensor_specs.args[0] : 0)) { pr_debug("sensor %pOFn id=%d belongs to %pOFn\n", sensor, id, child); - tz = no_free_ptr(child); - goto out; + return no_free_ptr(child); } } } - tz = ERR_PTR(-ENODEV); -out: - of_node_put(np); - return tz; + + return ERR_PTR(-ENODEV); } static int thermal_of_monitor_init(struct device_node *np, int *delay, int *pdelay)