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{
    "id": 2196247,
    "url": "http://patchwork.ozlabs.org/api/patches/2196247/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260213092958.864411-2-tzungbi@kernel.org/",
    "project": {
        "id": 42,
        "url": "http://patchwork.ozlabs.org/api/projects/42/?format=api",
        "name": "Linux GPIO development",
        "link_name": "linux-gpio",
        "list_id": "linux-gpio.vger.kernel.org",
        "list_email": "linux-gpio@vger.kernel.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": "",
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    },
    "msgid": "<20260213092958.864411-2-tzungbi@kernel.org>",
    "list_archive_url": null,
    "date": "2026-02-13T09:29:48",
    "name": "[v3,01/11] gpio: Access `gpio_bus_type` in gpiochip_setup_dev()",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "94bb5b972766eef7d26aaa5da161709b2fc539b2",
    "submitter": {
        "id": 83557,
        "url": "http://patchwork.ozlabs.org/api/people/83557/?format=api",
        "name": "Tzung-Bi Shih",
        "email": "tzungbi@kernel.org"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260213092958.864411-2-tzungbi@kernel.org/mbox/",
    "series": [
        {
            "id": 492068,
            "url": "http://patchwork.ozlabs.org/api/series/492068/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=492068",
            "date": "2026-02-13T09:29:47",
            "name": "gpio: Adopt revocable mechanism for UAF prevention",
            "version": 3,
            "mbox": "http://patchwork.ozlabs.org/series/492068/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2196247/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2196247/checks/",
    "tags": {},
    "related": [],
    "headers": {
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            "linux-gpio@vger.kernel.org"
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        "Delivered-To": "patchwork-incoming@legolas.ozlabs.org",
        "Authentication-Results": [
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        ],
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        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1770975065;\n\tbh=SyNkwYYpX1Qe4VcjL4R7jtbLw5u6+UPC9JTgSugQXxQ=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=QVdXgZ90DeKdu6KTKSXiCf0MgPWIsb0UtSL3PYn03zsGNK4xyTHzGdAknI46/Pg5x\n\t 2pCzhTRLan6XNXhw0eIzXUpspEa+Ee9S+ujPR9G9WV5PFBB3HcXHo40HsFbPI1LsUM\n\t jnoTz9FCb+Qda4tQIHWltNzqUSFcdzIcuOKcpBhX3vO7lHYsvYbhrHf9Wz7VpmA7FN\n\t tY/+SL8Q9UbrhO0Ef8akI4YamZ8qa2ChTGg+j3DsLn2bRTTiS32oIWiC4aVSlOOywU\n\t 0cMembfGjDEJIUre1B75PlGgTQFEuHYDzsRxVOMYPF+UF4mi+Tbw0NtdSkhzDR1zTY\n\t 7pEBe3FVuhHGw==",
        "From": "Tzung-Bi Shih <tzungbi@kernel.org>",
        "To": "Bartosz Golaszewski <brgl@kernel.org>,\n\tLinus Walleij <linusw@kernel.org>",
        "Cc": "Greg Kroah-Hartman <gregkh@linuxfoundation.org>,\n\t\"Rafael J. Wysocki\" <rafael@kernel.org>,\n\tDanilo Krummrich <dakr@kernel.org>,\n\tJonathan Corbet <corbet@lwn.net>,\n\tShuah Khan <shuah@kernel.org>,\n\tLaurent Pinchart <laurent.pinchart@ideasonboard.com>,\n\tWolfram Sang <wsa+renesas@sang-engineering.com>,\n\tJason Gunthorpe <jgg@nvidia.com>,\n\tJohan Hovold <johan@kernel.org>,\n\t\"Paul E . McKenney\" <paulmck@kernel.org>,\n\tDan Williams <dan.j.williams@intel.com>,\n\tchrome-platform@lists.linux.dev,\n\ttzungbi@kernel.org,\n\tlinux-gpio@vger.kernel.org,\n\tlinux-kselftest@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org",
        "Subject": "[PATCH v3 01/11] gpio: Access `gpio_bus_type` in gpiochip_setup_dev()",
        "Date": "Fri, 13 Feb 2026 09:29:48 +0000",
        "Message-ID": "<20260213092958.864411-2-tzungbi@kernel.org>",
        "X-Mailer": "git-send-email 2.53.0.310.g728cabbaf7-goog",
        "In-Reply-To": "<20260213092958.864411-1-tzungbi@kernel.org>",
        "References": "<20260213092958.864411-1-tzungbi@kernel.org>",
        "Precedence": "bulk",
        "X-Mailing-List": "linux-gpio@vger.kernel.org",
        "List-Id": "<linux-gpio.vger.kernel.org>",
        "List-Subscribe": "<mailto:linux-gpio+subscribe@vger.kernel.org>",
        "List-Unsubscribe": "<mailto:linux-gpio+unsubscribe@vger.kernel.org>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit"
    },
    "content": "To make the intent clear, access `gpio_bus_type` only when it's ready in\ngpiochip_setup_dev().\n\nSigned-off-by: Tzung-Bi Shih <tzungbi@kernel.org>\n---\nv3:\n- No changes.\n\nv2: https://lore.kernel.org/all/20260203061059.975605-2-tzungbi@kernel.org\n- No changes.\n\nv1: https://lore.kernel.org/all/20260116081036.352286-7-tzungbi@kernel.org\n\n drivers/gpio/gpiolib.c | 7 ++++---\n 1 file changed, 4 insertions(+), 3 deletions(-)",
    "diff": "diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c\nindex 5757c0475990..f4dad3e5b5a3 100644\n--- a/drivers/gpio/gpiolib.c\n+++ b/drivers/gpio/gpiolib.c\n@@ -902,6 +902,8 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)\n \tstruct fwnode_handle *fwnode = dev_fwnode(&gdev->dev);\n \tint ret;\n \n+\tgdev->dev.bus = &gpio_bus_type;\n+\n \t/*\n \t * If fwnode doesn't belong to another device, it's safe to clear its\n \t * initialized flag.\n@@ -1083,7 +1085,6 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,\n \t * then make sure they get free():ed there.\n \t */\n \tgdev->dev.type = &gpio_dev_type;\n-\tgdev->dev.bus = &gpio_bus_type;\n \tgdev->dev.parent = gc->parent;\n \tdevice_set_node(&gdev->dev, gpiochip_choose_fwnode(gc));\n \n@@ -1221,8 +1222,8 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,\n \t * we get a device node entry in sysfs under\n \t * /sys/bus/gpio/devices/gpiochipN/dev that can be used for\n \t * coldplug of device nodes and other udev business.\n-\t * We can do this only if gpiolib has been initialized.\n-\t * Otherwise, defer until later.\n+\t * We can do this only if gpiolib has been initialized\n+\t * (i.e., `gpio_bus_type` is ready).  Otherwise, defer until later.\n \t */\n \tif (gpiolib_initialized) {\n \t\tret = gpiochip_setup_dev(gdev);\n",
    "prefixes": [
        "v3",
        "01/11"
    ]
}