Since in v6.8-rc1, the of_node symlink under tty devices is missing. This breaks any udev rules relying on this information.

Link the of_node information in the serial controller device with the parent defined in the device tree. This will also apply to the serial device which takes the serial controller as a parent device.

Fixes: b286f4e87e32 ("serial: core: Move tty and serdev to be children of serial core port device") Cc: stable@vger.kernel.org Signed-off-by: Aidan Stewart astewart@tektelic.com --- v1 -> v2: - v1: https://lore.kernel.org/linux-serial/20250616162154.9057-1-astewart@tektelic... - Remove IS_ENABLED(CONFIG_OF) check. --- drivers/tty/serial/serial_base_bus.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/serial_base_bus.c b/drivers/tty/serial/serial_base_bus.c index 5d1677f1b651..cb3b127b06b6 100644 --- a/drivers/tty/serial/serial_base_bus.c +++ b/drivers/tty/serial/serial_base_bus.c @@ -72,6 +72,7 @@ static int serial_base_device_init(struct uart_port *port, dev->parent = parent_dev; dev->bus = &serial_base_bus_type; dev->release = release; + device_set_of_node_from_dev(dev, parent_dev);

if (!serial_base_initialized) { dev_dbg(port->dev, "uart_add_one_port() called before arch_initcall()?\n");