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GET /api/1.1/patches/2223542/?format=api
{ "id": 2223542, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223542/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260415143701.3309681-1-lgs201920130244@gmail.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.1/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/" }, "msgid": "<20260415143701.3309681-1-lgs201920130244@gmail.com>", "date": "2026-04-15T14:37:01", "name": "macintosh: adb: fix reference leak on failed platform device registration", "commit_ref": null, "pull_url": null, "state": "rejected", "archived": false, "hash": "ef5c23d00f8bee3935d5b07cd459f17b5faba40a", "submitter": { "id": 91722, "url": "http://patchwork.ozlabs.org/api/1.1/people/91722/?format=api", "name": "Guangshuo Li", "email": "lgs201920130244@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260415143701.3309681-1-lgs201920130244@gmail.com/mbox/", "series": [ { "id": 499997, "url": "http://patchwork.ozlabs.org/api/1.1/series/499997/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=499997", "date": "2026-04-15T14:37:01", "name": "macintosh: adb: fix reference leak on failed platform device registration", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499997/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223542/comments/", "check": "success", "checks": "http://patchwork.ozlabs.org/api/patches/2223542/checks/", "tags": {}, "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19776-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=sRk1jAZM;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; helo=lists.ozlabs.org;\n envelope-from=linuxppc-dev+bounces-19776-incoming=patchwork.ozlabs.org@lists.ozlabs.org;\n receiver=patchwork.ozlabs.org)", "lists.ozlabs.org;\n arc=none smtp.remote-ip=\"2607:f8b0:4864:20::62b\"", "lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com", "lists.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=sRk1jAZM;\n\tdkim-atps=neutral", "lists.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com\n (client-ip=2607:f8b0:4864:20::62b; helo=mail-pl1-x62b.google.com;\n envelope-from=lgs201920130244@gmail.com; receiver=lists.ozlabs.org)" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org\n [IPv6:2404:9400:21b9:f100::1])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1 raw public key)\n server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fwkJ64V0hz1yCv\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 16 Apr 2026 00:37:25 +1000 (AEST)", "from boromir.ozlabs.org (localhost [127.0.0.1])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 4fwkJ005BPz2yvr;\n\tThu, 16 Apr 2026 00:37:20 +1000 (AEST)", "from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com\n [IPv6:2607:f8b0:4864:20::62b])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 4fwkHy0BmNz2yvY\n\tfor <linuxppc-dev@lists.ozlabs.org>; Thu, 16 Apr 2026 00:37:17 +1000 (AEST)", "by mail-pl1-x62b.google.com with SMTP id\n d9443c01a7336-2ad4d639db3so35900385ad.0\n for <linuxppc-dev@lists.ozlabs.org>;\n Wed, 15 Apr 2026 07:37:17 -0700 (PDT)", "from lgs.. 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"[PATCH] macintosh: adb: fix reference leak on failed platform device\n registration", "Date": "Wed, 15 Apr 2026 22:37:01 +0800", "Message-ID": "<20260415143701.3309681-1-lgs201920130244@gmail.com>", "X-Mailer": "git-send-email 2.43.0", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Spam-Status": "No, score=0.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tDKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,\n\tFROM_LOCAL_DIGITS,FROM_LOCAL_HEX,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "When platform_device_register() fails in adbdev_init(), the embedded\nstruct device in adb_pfdev has already been initialized by\ndevice_initialize(), but the failure path does not drop the device\nreference for the current platform device:\n\n adbdev_init()\n platform_device_register(&adb_pfdev)\n device_initialize(&adb_pfdev.dev)\n setup_pdev_dma_masks(&adb_pfdev)\n return platform_device_add(&adb_pfdev)\n\nAs documented in platform_device_register(), the caller must use\nplatform_device_put() to give up the reference initialized in this\nfunction when registration fails.\n\nThis leads to a reference leak when platform_device_register() fails.\nFix this by checking the return value and calling platform_device_put().\n\nThe issue was identified by a static analysis tool I developed and\nconfirmed by manual review.\n\nFixes: c9f6d3d5c6d4f (\"[POWERPC] adb: Replace sleep notifier with platform driver suspend/resume hooks\")\nCc: stable@vger.kernel.org\nSigned-off-by: Guangshuo Li <lgs201920130244@gmail.com>\n---\n drivers/macintosh/adb.c | 7 ++++++-\n 1 file changed, 6 insertions(+), 1 deletion(-)", "diff": "diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c\nindex fe150125e099..eff06f78aa80 100644\n--- a/drivers/macintosh/adb.c\n+++ b/drivers/macintosh/adb.c\n@@ -883,6 +883,8 @@ adb_dummy_probe(struct platform_device *dev)\n static void __init\n adbdev_init(void)\n {\n+\tint err;\n+\n \tif (register_chrdev(ADB_MAJOR, \"adb\", &adb_fops)) {\n \t\tpr_err(\"adb: unable to get major %d\\n\", ADB_MAJOR);\n \t\treturn;\n@@ -893,6 +895,9 @@ adbdev_init(void)\n \n \tdevice_create(&adb_dev_class, NULL, MKDEV(ADB_MAJOR, 0), NULL, \"adb\");\n \n-\tplatform_device_register(&adb_pfdev);\n+\terr = platform_device_register(&adb_pfdev);\n+\tif (err)\n+\t\tplatform_device_put(&adb_pfdev);\n+\n \tplatform_driver_probe(&adb_pfdrv, adb_dummy_probe);\n }\n", "prefixes": [] }