From patchwork Wed Jan 8 13:16:09 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 13930959 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 15B55E77188 for ; Wed, 8 Jan 2025 13:45:59 +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:CC:To:In-Reply-To:References :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=JbpwNe7H/nYAZqga9/+6DPVfcnSEXkS2J7ZN0f7NL8A=; b=IYRjTJ9sqSw4i4SQJ00lAuAvu3 4YXhSc1f8wAxL37cKvkaB3blclSuumQqVEjNr/RFi7wVvHKnGbdxKkiPmFFjcA5mMyeyrisPBp9D9 /CmHuZBSrnUhxo7uqHAfX55Ku6jf3rH6A0skxa/IKP11n/yWJ6RkyemNTw0ymhms1ZXNZuNFuFucV Kx9JcGnv7vvbAcWK7tT7nWwRjJFH044m2JxaYprHtmJlXPVIO/yYjF2g84pDKo02Xha5xzfhsZ+QC lz0UY2qpQAAqExecouupVwPGKkjB9yy4/7VEkyz3Uqpc8sAkC1UdkRPuT17HyElLxoX6QoTxzIu5F v6QPfYtQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tVWNG-00000008ehN-3qh6; Wed, 08 Jan 2025 13:45:30 +0000 Received: from mx07-00178001.pphosted.com ([185.132.182.106]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tVW0i-00000008b1l-0bGo for linux-arm-kernel@lists.infradead.org; Wed, 08 Jan 2025 13:22:13 +0000 Received: from pps.filterd (m0369458.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 508DL90P003051; Wed, 8 Jan 2025 14:22:01 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= JbpwNe7H/nYAZqga9/+6DPVfcnSEXkS2J7ZN0f7NL8A=; b=n1FELsl3p37Pu62t yPHc3xzsr46g5mucwC54OICqHBMsfdl060XfzkSXh8q6r1hNLiw2cfhN90jfqKHh 9D696cZaIkcGzGq52epFQ1lp8iNirakFbQgSmVnPGapLQqDYp4w926KH7bHpUSad exVEvuFrii1bNTtLwHdxyh3pFYJ4MWR831PsREQuxTCWGeYuCkcSPymcg7pvPdS2 13gzTnccLkt42MBjyDQ7EcbdqD905RflJoJOtEr0c1nSI28pkzVekc5ppaY5Oj/U Uc+OG5roB3FI/YVrHb0ocJp/kWH+HnLPwINYq5JTPShGgUHMY8/FmPA7R6qgurdF OIiN5g== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 441kvw1rw9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 08 Jan 2025 14:22:01 +0100 (CET) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id AAEEB4006C; Wed, 8 Jan 2025 14:20:36 +0100 (CET) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 884D0270597; Wed, 8 Jan 2025 14:16:16 +0100 (CET) Received: from localhost (10.252.31.140) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.37; Wed, 8 Jan 2025 14:16:16 +0100 From: Alain Volmat Date: Wed, 8 Jan 2025 14:16:09 +0100 Subject: [PATCH v2 6/8] media: stm32: csi: remove useless fwnode_graph_get_endpoint call MIME-Version: 1.0 Message-ID: <20250108-csi_dcmipp_mp25_enhancements-v2-6-05808ce50e41@foss.st.com> References: <20250108-csi_dcmipp_mp25_enhancements-v2-0-05808ce50e41@foss.st.com> In-Reply-To: <20250108-csi_dcmipp_mp25_enhancements-v2-0-05808ce50e41@foss.st.com> To: Hugues Fruchet , Mauro Carvalho Chehab , Maxime Coquelin , Alexandre Torgue , Hans Verkuil , Sakari Ailus , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: , , , , , Alain Volmat X-Mailer: b4 0.14.1 X-Originating-IP: [10.252.31.140] X-ClientProxiedBy: EQNCAS1NODE4.st.com (10.75.129.82) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250108_052212_480883_0869DB17 X-CRM114-Status: GOOD ( 12.27 ) 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 The endpoint is already retrieved at the beginning of the function stm32_csi_parse_dt hence keep the endpoint pointer until the end instead of getting a new one. Signed-off-by: Alain Volmat --- drivers/media/platform/st/stm32/stm32-csi.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/drivers/media/platform/st/stm32/stm32-csi.c b/drivers/media/platform/st/stm32/stm32-csi.c index 4affbc00b042..1be12c9dcf55 100644 --- a/drivers/media/platform/st/stm32/stm32-csi.c +++ b/drivers/media/platform/st/stm32/stm32-csi.c @@ -932,38 +932,32 @@ static int stm32_csi_parse_dt(struct stm32_csi_dev *csidev) } ret = v4l2_fwnode_endpoint_parse(ep, &v4l2_ep); - fwnode_handle_put(ep); if (ret) { dev_err(csidev->dev, "Could not parse v4l2 endpoint\n"); - return ret; + goto out; } csidev->num_lanes = v4l2_ep.bus.mipi_csi2.num_data_lanes; if (csidev->num_lanes > STM32_CSI_LANES_MAX) { dev_err(csidev->dev, "Unsupported number of data-lanes: %d\n", csidev->num_lanes); - return -EINVAL; + ret = -EINVAL; + goto out; } memcpy(csidev->lanes, v4l2_ep.bus.mipi_csi2.data_lanes, sizeof(csidev->lanes)); - ep = fwnode_graph_get_next_endpoint(dev_fwnode(csidev->dev), NULL); - if (!ep) { - dev_err(csidev->dev, "Failed to get next endpoint\n"); - return -EINVAL; - } - v4l2_async_subdev_nf_init(&csidev->notifier, &csidev->sd); asd = v4l2_async_nf_add_fwnode_remote(&csidev->notifier, ep, struct v4l2_async_connection); - fwnode_handle_put(ep); if (IS_ERR(asd)) { dev_err(csidev->dev, "Failed to add fwnode remote subdev\n"); - return PTR_ERR(asd); + ret = PTR_ERR(asd); + goto out; } csidev->notifier.ops = &stm32_csi_notifier_ops; @@ -972,9 +966,11 @@ static int stm32_csi_parse_dt(struct stm32_csi_dev *csidev) if (ret) { dev_err(csidev->dev, "Failed to register notifier\n"); v4l2_async_nf_cleanup(&csidev->notifier); - return ret; + goto out; } +out: + fwnode_handle_put(ep); return ret; }