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{ "id": 19207, "url": "https://patchwork.libcamera.org/api/patches/19207/?format=api", "web_url": "https://patchwork.libcamera.org/patch/19207/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20231113100851.73886-1-alain.volmat@foss.st.com>", "date": "2023-11-13T10:08:51", "name": "[libcamera-devel] libcamera: camera_sensor: only access V4L_CID_HBLANK if existing", "commit_ref": "882d04d740eec4176d5639a30ac282b89ed49d10", "pull_url": null, "state": "accepted", "archived": false, "hash": "96adf7cfba77c86c1c2eca799b36f0995ee670f5", "submitter": { "id": 162, "url": "https://patchwork.libcamera.org/api/people/162/?format=api", "name": "Alain Volmat", "email": "alain.volmat@foss.st.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/19207/mbox/", "series": [ { "id": 4072, "url": "https://patchwork.libcamera.org/api/series/4072/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4072", "date": "2023-11-13T10:08:51", "name": "[libcamera-devel] libcamera: camera_sensor: only access V4L_CID_HBLANK if existing", "version": 1, "mbox": "https://patchwork.libcamera.org/series/4072/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/19207/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/19207/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 07440C3213\n\tfor <parsemail@patchwork.libcamera.org>;\n\tMon, 13 Nov 2023 10:09:35 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 541B5629BA;\n\tMon, 13 Nov 2023 11:09:34 +0100 (CET)", "from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com\n\t[185.132.182.106])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 066B761DB4\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tMon, 13 Nov 2023 11:09:32 +0100 (CET)", "from pps.filterd (m0288072.ppops.net [127.0.0.1])\n\tby mx07-00178001.pphosted.com (8.17.1.22/8.17.1.22) with ESMTP id\n\t3AD91I2u021403 for <libcamera-devel@lists.libcamera.org>;\n\tMon, 13 Nov 2023 11:09:31 +0100", "from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35])\n\tby mx07-00178001.pphosted.com (PPS) with ESMTPS id 3u9ywkxmf7-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256\n\tverify=NOT) for <libcamera-devel@lists.libcamera.org>;\n\tMon, 13 Nov 2023 11:09:31 +0100 (CET)", "from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20])\n\tby beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 2F36710005B\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tMon, 13 Nov 2023 11:09:30 +0100 (CET)", "from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69])\n\tby euls16034.sgp.st.com (STMicroelectronics) with ESMTP id\n\tBB32221058B for <libcamera-devel@lists.libcamera.org>;\n\tMon, 13 Nov 2023 11:09:30 +0100 (CET)", "from localhost (10.129.178.213) by SHFDAG1NODE1.st.com\n\t(10.75.129.69) with Microsoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27;\n\tMon, 13 Nov 2023 11:09:30 +0100" ], "DKIM-Signature": [ "v=1; 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dkim=pass (2048-bit key; \n\tunprotected) header.d=foss.st.com\n\theader.i=@foss.st.com header.b=\"eug3nk/F\"; \n\tdkim-atps=neutral", "To": "<libcamera-devel@lists.libcamera.org>", "Date": "Mon, 13 Nov 2023 11:08:51 +0100", "Message-ID": "<20231113100851.73886-1-alain.volmat@foss.st.com>", "X-Mailer": "git-send-email 2.25.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-Originating-IP": "[10.129.178.213]", "X-ClientProxiedBy": "SHFCAS1NODE2.st.com (10.75.129.73) To SHFDAG1NODE1.st.com\n\t(10.75.129.69)", "X-Proofpoint-Virus-Version": "vendor=baseguard\n\tengine=ICAP:2.0.272, Aquarius:18.0.987, Hydra:6.0.619,\n\tFMLib:17.11.176.26\n\tdefinitions=2023-11-12_24,2023-11-09_01,2023-05-22_02", "Subject": "[libcamera-devel] [PATCH] libcamera: camera_sensor: only access\n\tV4L_CID_HBLANK if existing", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "From": "Alain Volmat via libcamera-devel <libcamera-devel@lists.libcamera.org>", "Reply-To": "Alain Volmat <alain.volmat@foss.st.com>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Correct a crash in CameraSensor::init when trying to set the\nV4L2_CID_HBLANK control on sensor not implementing this control.\nThe HBLANK sensor not being mandatory for non-RAW sensors, it can\nhappen that the sensor does not expose this control.\nPerform check against availability of the control prior to usage in\norder to avoid the crash.\n\nSigned-off-by: Alain Volmat <alain.volmat@foss.st.com>\n---\n src/libcamera/camera_sensor.cpp | 24 +++++++++++++-----------\n 1 file changed, 13 insertions(+), 11 deletions(-)", "diff": "diff --git a/src/libcamera/camera_sensor.cpp b/src/libcamera/camera_sensor.cpp\nindex d9261672..0ef78d9c 100644\n--- a/src/libcamera/camera_sensor.cpp\n+++ b/src/libcamera/camera_sensor.cpp\n@@ -197,17 +197,19 @@ int CameraSensor::init()\n \t * \\todo The control API ought to have a flag to specify if a control\n \t * is read-only which could be used below.\n \t */\n-\tconst ControlInfo hblank = ctrls.infoMap()->at(V4L2_CID_HBLANK);\n-\tconst int32_t hblankMin = hblank.min().get<int32_t>();\n-\tconst int32_t hblankMax = hblank.max().get<int32_t>();\n-\n-\tif (hblankMin != hblankMax) {\n-\t\tControlList ctrl(subdev_->controls());\n-\n-\t\tctrl.set(V4L2_CID_HBLANK, hblankMin);\n-\t\tret = subdev_->setControls(&ctrl);\n-\t\tif (ret)\n-\t\t\treturn ret;\n+\tif (ctrls.infoMap()->find(V4L2_CID_HBLANK) != ctrls.infoMap()->end()) {\n+\t\tconst ControlInfo hblank = ctrls.infoMap()->at(V4L2_CID_HBLANK);\n+\t\tconst int32_t hblankMin = hblank.min().get<int32_t>();\n+\t\tconst int32_t hblankMax = hblank.max().get<int32_t>();\n+\n+\t\tif (hblankMin != hblankMax) {\n+\t\t\tControlList ctrl(subdev_->controls());\n+\n+\t\t\tctrl.set(V4L2_CID_HBLANK, hblankMin);\n+\t\t\tret = subdev_->setControls(&ctrl);\n+\t\t\tif (ret)\n+\t\t\t\treturn ret;\n+\t\t}\n \t}\n \n \treturn applyTestPatternMode(controls::draft::TestPatternModeEnum::TestPatternModeOff);\n", "prefixes": [ "libcamera-devel" ] }