From patchwork Wed Aug 14 10:35:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 13763281 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) (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 748811B142C for ; Wed, 14 Aug 2024 10:36:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.46 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723631773; cv=none; b=aAyQb6pN0LDmjLF6D0ixHA0IOyQ+PvJODG+nN051CNHXYsjw+mDi7sVZm/ruOPpCp80gCsuREqdrEBQwj4zKC+E1E+iMsZLgQPm0Rl4BO6NOjq9de5Jq3HaL/dhmz0xC7mRU5popHCNz1IMjoAHw3HZlCq5eGOfsmQOqSB6ceg8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723631773; c=relaxed/simple; bh=cvPFMMR9o434sytT/dR1qucAAqA0mR0xlD7ZHF+DVrs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=TfGLTakgzWRg9r86BJ/YXKnT0/53DqRIJYY4WUJy/fZGgBGbtwrHpdlnowVGdVE0JbtvEEobhP3nT/pUABhW10KKX+/d9J0X/+jk28jjC514nd+q2gt0x7RaGQjSmZA0xwGv2qogSYESHD7MMXiRHAXpQ4QE37AqXpZauZsLu9g= 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=Eq4SLExv; arc=none smtp.client-ip=209.85.128.46 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="Eq4SLExv" Received: by mail-wm1-f46.google.com with SMTP id 5b1f17b1804b1-428119da952so45148595e9.0 for ; Wed, 14 Aug 2024 03:36:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1723631769; x=1724236569; 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=tdA2lN2q6veoMIbM5LLb1wXxxOsZ4MbHN1OFqGaeSQ8=; b=Eq4SLExvevXvZphQtkO34R/SldPw5RmRjm2QXESptwbaX2Kt41hGaIsUQPbV3pwdJ2 4CyB5d2r83QGnxDPbsnh3TzK9zLnQxacl9DOxRLwdgHOFEOl/ttO0w/Qusb4R3VLY36P hol5XXjS9sT8mNIKXtIieaAnLOx78U138ZTUvYTjXc5V2rF7r1EGwyZBs/RkeNLexY75 NPIB0FXC6617T4UcQ7bcF603pYIs5ApC7LBIptL3Rdmok4zIECLY7PVTVHkBTVn1mPcA RZpLMIEwVryiTdvNQEtVGglkcYTkMhNhHrCwaah5UExJQj/8J7/ZVHhbxu+EeSYVcutt Zuzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723631769; x=1724236569; 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=tdA2lN2q6veoMIbM5LLb1wXxxOsZ4MbHN1OFqGaeSQ8=; b=OWeYWrM4qYlNi93kfOhidMpWMe77jYBycfeEV7/XWK662u5wz6iTNISc011akKktm8 05Rbz2GtdO3DaVI+CwX9yYBQIj4g7NGNv1VZF8kRrQzgIKz88XhkvxAtpCmfZuB9RzoU 8InD73RaK7EwJ9hpH5ceaQebkcl0Mh5bnqmfwajKjDoTnjxS28d4nt40wEinUskUG3O7 fQY1nPyGgIry0vaeOUXs273YIhJskxAqT530aPhFhnv3bJTh2X2akE7ZTGElwyMk781L TOro5XQiLhmI1a7DLshnoA7Czgppb+Mcx+eswrHR8qH/VDJoMM7W/rDJwPNhe9CKYG2s 7rqw== X-Forwarded-Encrypted: i=1; AJvYcCWMduzpuXNUtmzLi27zYgj9j/z47i8xISEpglDjx7CpXPknudjqPAecVxL6XU6m3nRP8p6vcFaOZY9e8Z73m/r/hJ1/iCnMj6AY3DjVPg== X-Gm-Message-State: AOJu0YwNlJAngFY9mLbzgeJIfsPoM9n4AVLDvss6Y6r0bCF+D88kmlZl TgaFRQLkw+6FYKqZ32CSls2MVhVUCLqaFbCjT148x+kXKiNpgYYqVbbfcD+bB8ow9L/qCqsL1xv Q X-Google-Smtp-Source: AGHT+IFE7qRnDKvcYh/oUsXuqZL/PoY1UtTYsAQZ/ZIKOt+fK4aWCLBS7UFZjbC1sOwdQ9LTP2J2gw== X-Received: by 2002:a05:600c:450a:b0:426:62a0:eb6b with SMTP id 5b1f17b1804b1-429dd2364e9mr20506945e9.13.1723631769418; Wed, 14 Aug 2024 03:36:09 -0700 (PDT) Received: from [127.0.1.1] ([178.197.215.209]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-429ded3dd4dsm15501835e9.29.2024.08.14.03.36.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Aug 2024 03:36:08 -0700 (PDT) From: Krzysztof Kozlowski Date: Wed, 14 Aug 2024 12:35:43 +0200 Subject: [PATCH 07/11] usb: dwc3: qcom: use scoped device node handling to simplify error paths Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240814-b4-cleanup-h-of-node-put-usb-v1-7-95481b9682bc@linaro.org> References: <20240814-b4-cleanup-h-of-node-put-usb-v1-0-95481b9682bc@linaro.org> In-Reply-To: <20240814-b4-cleanup-h-of-node-put-usb-v1-0-95481b9682bc@linaro.org> To: Patrice Chotard , Thinh Nguyen , Greg Kroah-Hartman , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Michal Simek Cc: linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-msm@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1789; i=krzysztof.kozlowski@linaro.org; h=from:subject:message-id; bh=cvPFMMR9o434sytT/dR1qucAAqA0mR0xlD7ZHF+DVrs=; b=owEBbQKS/ZANAwAKAcE3ZuaGi4PXAcsmYgBmvIiFOSGYZ3MyWgBlmp4elS2FxVZLfoOlKKVXf nEc7sNj/76JAjMEAAEKAB0WIQTd0mIoPREbIztuuKjBN2bmhouD1wUCZryIhQAKCRDBN2bmhouD 12HdD/0SbhZgsdPxESEXiWrmD2MmSlZYaHIFK04QnmtTGzG7t0Jh9HWfChuRvbauueqiX+o/xmb 1xkdBCsIc82mGS/7fxIw7wVpbHa7v1f9VHg4JI015V6ZIXRjyn1XB10nbWe8VVRC1mgwmyG7jth kS5I5vmPYOjF0aOtGMcRiRm+1S2jGaY/gKkY+A7n0/SmuIODqDGlYeL/923e4abPDAwVOKvtrrD AIHf3MWiqqurK+VEKKKsumGSousFEwSvqNnyZd31PsWq+a1bsnJjlJMCNCJQAnVeGzfaMqOloRK o5uxNYmc7M319TY3v2/4NO0NgBBgqt8qD2gYIwXE/w4Su9w9vJ9RAFcsARvZ0aznTWdHfOvbD6T OOD48G5lh3b6UYDC4+tMcKkGZxVabxXS4REYNSfgNJNTTZ2Q3odosHwb+Y2dUzvjb+uk54Er/Q+ 3Q8hCccVDKI6cy4edmZqEeYtjGolF+krVLeSsHLWo2U6fjRi6IP2DbAYjTKwhPYoxEQBCyFIeIO G4hLCP9N6ofmZJ4jjLssM25rSsHQpYICn06Wcu56RK4E1EA3ro4j06nqmKErn0sKnFCaoFD9Lk4 CLBigpsWJC2CT/8OdwgPOptlM/IYzBsEntE1q+WQPA66K6AMI8NUjL9w0I4H1bS0Sfl9siH2n9m eMa8s7NeLt86+RA== 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. Signed-off-by: Krzysztof Kozlowski Acked-by: Thinh Nguyen --- drivers/usb/dwc3/dwc3-qcom.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 88fb6706a18d..03a8f080078e 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -4,6 +4,7 @@ * Inspired by dwc3-of-simple.c */ +#include #include #include #include @@ -702,11 +703,12 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) static int dwc3_qcom_of_register_core(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - struct device_node *np = pdev->dev.of_node, *dwc3_np; + struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; int ret; - dwc3_np = of_get_compatible_child(np, "snps,dwc3"); + struct device_node *dwc3_np __free(device_node) = of_get_compatible_child(np, + "snps,dwc3"); if (!dwc3_np) { dev_err(dev, "failed to find dwc3 core child\n"); return -ENODEV; @@ -715,7 +717,7 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret); - goto node_put; + return ret; } qcom->dwc3 = of_find_device_by_node(dwc3_np); @@ -725,9 +727,6 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) of_platform_depopulate(dev); } -node_put: - of_node_put(dwc3_np); - return ret; }