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{
    "id": 18225,
    "url": "https://patchwork.libcamera.org/api/patches/18225/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/18225/",
    "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": "<20230130180244.2150205-2-kieran.bingham@ideasonboard.com>",
    "date": "2023-01-30T18:02:43",
    "name": "[libcamera-devel,1/2] libcamera: camera: Ensure queued requests are prepared",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "c50ce3b7c29be69419d456df49f44c61069f1910",
    "submitter": {
        "id": 4,
        "url": "https://patchwork.libcamera.org/api/people/4/?format=api",
        "name": "Kieran Bingham",
        "email": "kieran.bingham@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/18225/mbox/",
    "series": [
        {
            "id": 3732,
            "url": "https://patchwork.libcamera.org/api/series/3732/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3732",
            "date": "2023-01-30T18:02:42",
            "name": "Camera/Request reliability",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/3732/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/18225/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/18225/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": [
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        ],
        "DKIM-Signature": [
            "v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1675101770;\n\tbh=3if+N+QqMPI/yb8qphMcMG4atLJELfDyvREaFZdGC9A=;\n\th=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe:\n\tList-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:\n\tFrom;\n\tb=cb/wKF4vu1bALQ8xWwa0e6fSDkXREpjqaUX+5JnfqXwqgSbP1ABIOIwic7E71yRed\n\tr5cZAjJHGs9IspoIDMBDO2pB3sgzHSMxPtD+DUBaa5aWG5TxC9gA/ATVIzazBnBbTO\n\tr05phQ/Xs0+HnRiz8QCyUbX1GUtlg1B7ZlWhXyTpMS9KkBzR1RDu8EiNQguXS8Tvhr\n\teYeCuV4s7trd+ydMkLs0/Fvf7tQPsfEkV1LfNWgNbUsR3qIb2IeWyZvnD1uAjsJs6j\n\tYiHlH/gvSp0mtMWehnkGGYCDuXFRzt2cx9cYSaCeRLLaucXre+MWJ1KmLGTwsRWHpy\n\tHWlFK1ECa8s1A==",
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        "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"R0LNEK6q\"; dkim-atps=neutral",
        "To": "libcamera devel <libcamera-devel@lists.libcamera.org>",
        "Date": "Mon, 30 Jan 2023 18:02:43 +0000",
        "Message-Id": "<20230130180244.2150205-2-kieran.bingham@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.34.1",
        "In-Reply-To": "<20230130180244.2150205-1-kieran.bingham@ideasonboard.com>",
        "References": "<20230130180244.2150205-1-kieran.bingham@ideasonboard.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH 1/2] libcamera: camera: Ensure queued\n\trequests are prepared",
        "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": "Kieran Bingham via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Kieran Bingham <kieran.bingham@ideasonboard.com>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Invalid, or not correctly reset requests can cause undefined behaviour\nin the pipeline handlers due to unexpected request state.\n\nIf the status has not been reset to Request::RequestPending, it is\neither not new, or has not been correctly procesed through\nRequest::reuse().\n\nThis can be caught early by validating the status of the request when it\nis queued to a camera.\n\nReject invalid requests before processing them in the pipeline handlers.\n\nSigned-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>\n---\n src/libcamera/camera.cpp | 5 +++++\n 1 file changed, 5 insertions(+)",
    "diff": "diff --git a/src/libcamera/camera.cpp b/src/libcamera/camera.cpp\nindex 0da167a7bc51..48bf19b28979 100644\n--- a/src/libcamera/camera.cpp\n+++ b/src/libcamera/camera.cpp\n@@ -1126,6 +1126,11 @@ int Camera::queueRequest(Request *request)\n \t\treturn -EXDEV;\n \t}\n \n+\tif (request->status() != Request::RequestPending) {\n+\t\tLOG(Camera, Error) << request->toString() << \" is not prepared\";\n+\t\treturn -EINVAL;\n+\t}\n+\n \t/*\n \t * The camera state may change until the end of the function. No locking\n \t * is however needed as PipelineHandler::queueRequest() will handle\n",
    "prefixes": [
        "libcamera-devel",
        "1/2"
    ]
}