From patchwork Wed Aug 28 07:38:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "zhangzekun (A)" X-Patchwork-Id: 13780850 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (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 1E2271552EB for ; Wed, 28 Aug 2024 07:51:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.188 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724831512; cv=none; b=LeroYcYKungpN899FtJ+MwzfCtrAJz1ZAQgXjW2HAU+Zuh0ul0TEHpNyZqYAue/BaoQk24XCnptxIc5P8F5LrYYdZQBRgGcNcTY9nhBGeS0YyHxyGO7oNqU+S/f5D82AYOWz/3Fp7uPtTAPLXYumVuoTg1KuJtP+x+xKV/dKh9A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724831512; c=relaxed/simple; bh=Nftnqekf4BKkmnvCsFvjvPT5ViVvEdvBKoMh7tkLcrg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kcF2p+O9dTpyYc8SHVE5EtEDgTnmHXtSLil6g4AagtFwqfhowmJtV6UQHirkYVRv88V6rq67ds6w0EW+tp6+qZxmJRE3e3n9by2de3MrBU7/g87KOtAQbu83k7sEo8h+kC56Gg7VYViRHyNtRwyTZqZZMe74K7L1UTeKmQ6BaCs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.252]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4WtxQj5jS7zpTtB; Wed, 28 Aug 2024 15:50:05 +0800 (CST) Received: from kwepemf500003.china.huawei.com (unknown [7.202.181.241]) by mail.maildlp.com (Postfix) with ESMTPS id 9AE67180AE6; Wed, 28 Aug 2024 15:51:47 +0800 (CST) Received: from huawei.com (10.175.112.208) by kwepemf500003.china.huawei.com (7.202.181.241) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Wed, 28 Aug 2024 15:51:46 +0800 From: Zhang Zekun To: , , , , , , , , , , , , , , , CC: Subject: [PATCH 2/5] PCI: mediatek: Use helper function for_each_available_child_of_node_scoped() Date: Wed, 28 Aug 2024 15:38:22 +0800 Message-ID: <20240828073825.43072-3-zhangzekun11@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240828073825.43072-1-zhangzekun11@huawei.com> References: <20240828073825.43072-1-zhangzekun11@huawei.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemf500003.china.huawei.com (7.202.181.241) for_each_available_child_of_node_scoped() provides a scope-based cleanup functinality to put the device_node automatically, and we don't need to call of_node_put() directly. Let's simplify the code a bit with the use of these functions. Signed-off-by: Zhang Zekun Reviewed-by: Jonathan Cameron --- drivers/pci/controller/pcie-mediatek.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index 9be3cebd862e..d14e8d151c08 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -1042,24 +1042,24 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie) static int mtk_pcie_setup(struct mtk_pcie *pcie) { struct device *dev = pcie->dev; - struct device_node *node = dev->of_node, *child; + struct device_node *node = dev->of_node; struct mtk_pcie_port *port, *tmp; int err, slot; slot = of_get_pci_domain_nr(dev->of_node); if (slot < 0) { - for_each_available_child_of_node(node, child) { + for_each_available_child_of_node_scoped(node, child) { err = of_pci_get_devfn(child); if (err < 0) { dev_err(dev, "failed to get devfn: %d\n", err); - goto error_put_node; + return err; } slot = PCI_SLOT(err); err = mtk_pcie_parse_port(pcie, child, slot); if (err) - goto error_put_node; + return err; } } else { err = mtk_pcie_parse_port(pcie, node, slot); @@ -1080,9 +1080,6 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie) mtk_pcie_subsys_powerdown(pcie); return 0; -error_put_node: - of_node_put(child); - return err; } static int mtk_pcie_probe(struct platform_device *pdev)