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GET /api/patches/2224969/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2224969,
    "url": "http://patchwork.ozlabs.org/api/patches/2224969/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260420040940.14824-1-neilfsun@tencent.com/",
    "project": {
        "id": 28,
        "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api",
        "name": "Linux PCI development",
        "link_name": "linux-pci",
        "list_id": "linux-pci.vger.kernel.org",
        "list_email": "linux-pci@vger.kernel.org",
        "web_url": null,
        "scm_url": null,
        "webscm_url": null,
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<20260420040940.14824-1-neilfsun@tencent.com>",
    "list_archive_url": null,
    "date": "2026-04-20T04:09:40",
    "name": "PCI/MSI: Fix memory leak in pci_alloc_irq_vectors_affinity INTx path",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "5a88dc405bbd3fbff3a859e236e1b832e8ba054e",
    "submitter": {
        "id": 77323,
        "url": "http://patchwork.ozlabs.org/api/people/77323/?format=api",
        "name": "neilfsun",
        "email": "loyou85@gmail.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260420040940.14824-1-neilfsun@tencent.com/mbox/",
    "series": [
        {
            "id": 500549,
            "url": "http://patchwork.ozlabs.org/api/series/500549/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=500549",
            "date": "2026-04-20T04:09:40",
            "name": "PCI/MSI: Fix memory leak in pci_alloc_irq_vectors_affinity INTx path",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/500549/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2224969/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2224969/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "neilfsun <loyou85@gmail.com>",
        "X-Google-Original-From": "neilfsun <neilfsun@tencent.com>",
        "To": "bhelgaas@google.com,\n\tshawn.lin@rock-chips.com,\n\thans.zhang@cixtech.com,\n\ttglx@kernel.org,\n\tlinux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org",
        "Cc": "neilfsun <neilfsun@tencent.com>,\n\tSun Feng <loyou85@gmail.com>",
        "Subject": "[PATCH] PCI/MSI: Fix memory leak in pci_alloc_irq_vectors_affinity\n INTx path",
        "Date": "Mon, 20 Apr 2026 12:09:40 +0800",
        "Message-ID": "<20260420040940.14824-1-neilfsun@tencent.com>",
        "X-Mailer": "git-send-email 2.52.0",
        "Precedence": "bulk",
        "X-Mailing-List": "linux-pci@vger.kernel.org",
        "List-Id": "<linux-pci.vger.kernel.org>",
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    },
    "content": "In the INTx fallback path of pci_alloc_irq_vectors_affinity(),\naffinity masks are created and never freed.\n\nSigned-off-by: neilfsun <neilfsun@tencent.com>\nSigned-off-by: Sun Feng <loyou85@gmail.com>\n---\n drivers/pci/msi/api.c | 5 ++++-\n 1 file changed, 4 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/pci/msi/api.c b/drivers/pci/msi/api.c\nindex c18559b6272c..c1377f74b8f3 100644\n--- a/drivers/pci/msi/api.c\n+++ b/drivers/pci/msi/api.c\n@@ -280,14 +280,17 @@ int pci_alloc_irq_vectors_affinity(struct pci_dev *dev, unsigned int min_vecs,\n \t/* use INTx IRQ if allowed */\n \tif (flags & PCI_IRQ_INTX) {\n \t\tif (min_vecs == 1 && dev->irq) {\n+\t\t\tstruct irq_affinity_desc *masks = NULL;\n+\n \t\t\t/*\n \t\t\t * Invoke the affinity spreading logic to ensure that\n \t\t\t * the device driver can adjust queue configuration\n \t\t\t * for the single interrupt case.\n \t\t\t */\n \t\t\tif (affd)\n-\t\t\t\tirq_create_affinity_masks(1, affd);\n+\t\t\t\tmasks = irq_create_affinity_masks(1, affd);\n \t\t\tpci_intx(dev, 1);\n+\t\t\tkfree(masks);\n \t\t\treturn 1;\n \t\t}\n \t}\n",
    "prefixes": []
}