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{
    "id": 2218339,
    "url": "http://patchwork.ozlabs.org/api/patches/2218339/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260401023048.4182452-1-18255117159@163.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",
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    "msgid": "<20260401023048.4182452-1-18255117159@163.com>",
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    "date": "2026-04-01T02:30:48",
    "name": "PCI: dwc: Fix type mismatch for kstrtou32_from_user return value",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "e47c7126612a835f06b97719c7640730497de603",
    "submitter": {
        "id": 89937,
        "url": "http://patchwork.ozlabs.org/api/people/89937/?format=api",
        "name": "Hans Zhang",
        "email": "18255117159@163.com"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260401023048.4182452-1-18255117159@163.com/mbox/",
    "series": [
        {
            "id": 498268,
            "url": "http://patchwork.ozlabs.org/api/series/498268/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=498268",
            "date": "2026-04-01T02:30:48",
            "name": "PCI: dwc: Fix type mismatch for kstrtou32_from_user return value",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/498268/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2218339/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2218339/checks/",
    "tags": {},
    "related": [],
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        "From": "Hans Zhang <18255117159@163.com>",
        "To": "lpieralisi@kernel.org,\n\tjingoohan1@gmail.com,\n\tmani@kernel.org,\n\tkwilczynski@kernel.org,\n\tbhelgaas@google.com",
        "Cc": "robh@kernel.org,\n\tlinux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tHans Zhang <18255117159@163.com>",
        "Subject": "[PATCH] PCI: dwc: Fix type mismatch for kstrtou32_from_user return\n value",
        "Date": "Wed,  1 Apr 2026 10:30:48 +0800",
        "Message-Id": "<20260401023048.4182452-1-18255117159@163.com>",
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    },
    "content": "kstrtou32_from_user() returns int, but the return value was stored in\na u32 variable 'val', risking sign loss. Use a dedicated int variable\nto correctly handle the return code.\n\nSigned-off-by: Hans Zhang <18255117159@163.com>\n---\n .../controller/dwc/pcie-designware-debugfs.c  | 21 +++++++++++--------\n 1 file changed, 12 insertions(+), 9 deletions(-)\n\n\nbase-commit: 9147566d801602c9e7fc7f85e989735735bf38ba",
    "diff": "diff --git a/drivers/pci/controller/dwc/pcie-designware-debugfs.c b/drivers/pci/controller/dwc/pcie-designware-debugfs.c\nindex 0d1340c9b364..9461be074490 100644\n--- a/drivers/pci/controller/dwc/pcie-designware-debugfs.c\n+++ b/drivers/pci/controller/dwc/pcie-designware-debugfs.c\n@@ -208,10 +208,11 @@ static ssize_t lane_detect_write(struct file *file, const char __user *buf,\n \tstruct dw_pcie *pci = file->private_data;\n \tstruct dwc_pcie_rasdes_info *rinfo = pci->debugfs->rasdes_info;\n \tu32 lane, val;\n+\tint ret;\n \n-\tval = kstrtou32_from_user(buf, count, 0, &lane);\n-\tif (val)\n-\t\treturn val;\n+\tret = kstrtou32_from_user(buf, count, 0, &lane);\n+\tif (ret)\n+\t\treturn ret;\n \n \tval = dw_pcie_readl_dbi(pci, rinfo->ras_cap_offset + SD_STATUS_L1LANE_REG);\n \tval &= ~(LANE_SELECT);\n@@ -347,10 +348,11 @@ static ssize_t counter_enable_write(struct file *file, const char __user *buf,\n \tstruct dw_pcie *pci = pdata->pci;\n \tstruct dwc_pcie_rasdes_info *rinfo = pci->debugfs->rasdes_info;\n \tu32 val, enable;\n+\tint ret;\n \n-\tval = kstrtou32_from_user(buf, count, 0, &enable);\n-\tif (val)\n-\t\treturn val;\n+\tret = kstrtou32_from_user(buf, count, 0, &enable);\n+\tif (ret)\n+\t\treturn ret;\n \n \tmutex_lock(&rinfo->reg_event_lock);\n \tset_event_number(pdata, pci, rinfo);\n@@ -408,10 +410,11 @@ static ssize_t counter_lane_write(struct file *file, const char __user *buf,\n \tstruct dw_pcie *pci = pdata->pci;\n \tstruct dwc_pcie_rasdes_info *rinfo = pci->debugfs->rasdes_info;\n \tu32 val, lane;\n+\tint ret;\n \n-\tval = kstrtou32_from_user(buf, count, 0, &lane);\n-\tif (val)\n-\t\treturn val;\n+\tret = kstrtou32_from_user(buf, count, 0, &lane);\n+\tif (ret)\n+\t\treturn ret;\n \n \tmutex_lock(&rinfo->reg_event_lock);\n \tset_event_number(pdata, pci, rinfo);\n",
    "prefixes": []
}