From patchwork Fri Aug 23 09:02:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13774800 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 21267C531DC for ; Fri, 23 Aug 2024 09:01:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=CM2sKUjGuJOYeGEnLd4ZLYVwbDTuRcH+7PYNThIUXl0=; b=hc8dnHNQsuECO46c5l9bAlUcmj mIwnuEqKaZly1Y5HAYi43DKY1AtsABteGlbGw86yMwJ92hKYE0G2SxNr+6SYeoidF0QJEEm0kLj2j WbsCKA4TjgCffQ4eW8NgPJoTEd+spHkIe4kGCWm4P/GB8dIFHc6oS9D2P9nUU1gYN4nBVKz6Mde6j 3weqrUvQ8oPIaoT9v2wqhnt0mbi5EZZC4TGci+8Ey4HTBjm1khuXtzfkl9gopPgKHlZ/QHWmybUUD LYEvckV6JBf5urS9WNi9b5MV6oj2Tw1lKBsQgdpjIbSzejnygKLiE+XEzsuWIfCyPefS8QDTd5B/N wTWcy6Zg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1shQAP-0000000G0B0-3NI2; Fri, 23 Aug 2024 09:01:09 +0000 Received: from szxga05-in.huawei.com ([45.249.212.191]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1shQ4I-0000000Fy7m-0sZr for linux-arm-kernel@lists.infradead.org; Fri, 23 Aug 2024 08:54:51 +0000 Received: from mail.maildlp.com (unknown [172.19.163.44]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4Wqv1p3GSVz1HGkX; Fri, 23 Aug 2024 16:51:26 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 9A4C7140360; Fri, 23 Aug 2024 16:54:40 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemh500013.china.huawei.com (7.202.181.146) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Fri, 23 Aug 2024 16:54:39 +0800 From: Jinjie Ruan To: , , , , , , , , CC: Subject: [PATCH -next 1/3] media: samsung: exynos4-is: Use for_each_available_child_of_node_scoped() Date: Fri, 23 Aug 2024 17:02:15 +0800 Message-ID: <20240823090217.436622-2-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240823090217.436622-1-ruanjinjie@huawei.com> References: <20240823090217.436622-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemh500013.china.huawei.com (7.202.181.146) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240823_015450_791460_3E666D19 X-CRM114-Status: GOOD ( 11.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Avoids the need for manual cleanup of_node_put() in early exits from the loop. Signed-off-by: Jinjie Ruan --- .../platform/samsung/exynos4-is/media-dev.c | 27 ++++++------------- 1 file changed, 8 insertions(+), 19 deletions(-) diff --git a/drivers/media/platform/samsung/exynos4-is/media-dev.c b/drivers/media/platform/samsung/exynos4-is/media-dev.c index 5f10bb4eb4f7..73d620c325ec 100644 --- a/drivers/media/platform/samsung/exynos4-is/media-dev.c +++ b/drivers/media/platform/samsung/exynos4-is/media-dev.c @@ -482,15 +482,12 @@ static int fimc_md_parse_one_endpoint(struct fimc_md *fmd, static int fimc_md_parse_port_node(struct fimc_md *fmd, struct device_node *port) { - struct device_node *ep; int ret; - for_each_child_of_node(port, ep) { + for_each_child_of_node_scoped(port, ep) { ret = fimc_md_parse_one_endpoint(fmd, ep); - if (ret < 0) { - of_node_put(ep); + if (ret < 0) return ret; - } } return 0; @@ -501,7 +498,6 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd) { struct device_node *parent = fmd->pdev->dev.of_node; struct device_node *ports = NULL; - struct device_node *node; int ret; /* @@ -518,7 +514,7 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd) fmd->num_sensors = 0; /* Attach sensors linked to MIPI CSI-2 receivers */ - for_each_available_child_of_node(parent, node) { + for_each_available_child_of_node_scoped(parent, node) { struct device_node *port; if (!of_node_name_eq(node, "csis")) @@ -530,10 +526,8 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd) ret = fimc_md_parse_port_node(fmd, port); of_node_put(port); - if (ret < 0) { - of_node_put(node); + if (ret < 0) goto cleanup; - } } /* Attach sensors listed in the parallel-ports node */ @@ -541,12 +535,10 @@ static int fimc_md_register_sensor_entities(struct fimc_md *fmd) if (!ports) goto rpm_put; - for_each_child_of_node(ports, node) { + for_each_child_of_node_scoped(ports, node) { ret = fimc_md_parse_port_node(fmd, node); - if (ret < 0) { - of_node_put(node); + if (ret < 0) goto cleanup; - } } of_node_put(ports); @@ -736,10 +728,9 @@ static int fimc_md_register_platform_entity(struct fimc_md *fmd, static int fimc_md_register_platform_entities(struct fimc_md *fmd, struct device_node *parent) { - struct device_node *node; int ret = 0; - for_each_available_child_of_node(parent, node) { + for_each_available_child_of_node_scoped(parent, node) { struct platform_device *pdev; int plat_entity = -1; @@ -762,10 +753,8 @@ static int fimc_md_register_platform_entities(struct fimc_md *fmd, ret = fimc_md_register_platform_entity(fmd, pdev, plat_entity); put_device(&pdev->dev); - if (ret < 0) { - of_node_put(node); + if (ret < 0) break; - } } return ret;