Merge tag 'tty-6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull serial driver fixes from Greg KH:
"Here are three small serial driver fixes for 6.19-rc7 that resolve
some reported issues. They include:

- tty->port race condition fix for a reported problem

- qcom_geni serial driver fix

- 8250_pci serial driver fix

All of these have been in linux-next with no reported issues"

* tag 'tty-6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: Fix not set tty->port race condition
serial: 8250_pci: Fix broken RS485 for F81504/508/512
serial: qcom_geni: Fix BT failure regression on RB2 platform

drivers/tty/serial/8250/8250_pci.c

···
 }
 
 static const struct serial_rs485 pci_fintek_rs485_supported = {
-	.flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND,
+	.flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND,
 	/* F81504/508/512 does not support RTS delay before or after send */
 };
 

drivers/tty/serial/qcom_geni_serial.c

···
 	if (ret)
 		goto error;
 
-	devm_pm_runtime_enable(port->se.dev);
-
-	ret = uart_add_one_port(drv, uport);
-	if (ret)
-		goto error;
-
 	if (port->wakeup_irq > 0) {
 		device_init_wakeup(&pdev->dev, true);
 		ret = dev_pm_set_dedicated_wake_irq(&pdev->dev,
···
 		if (ret) {
 			device_init_wakeup(&pdev->dev, false);
 			ida_free(&port_ida, uport->line);
-			uart_remove_one_port(drv, uport);
 			goto error;
 		}
 	}
+
+	devm_pm_runtime_enable(port->se.dev);
+
+	ret = uart_add_one_port(drv, uport);
+	if (ret)
+		goto error;
 
 	return 0;
 

drivers/tty/serial/serial_core.c

···
 	if (uport->cons && uport->dev)
 		of_console_check(uport->dev->of_node, uport->cons->name, uport->line);
 
+	/*
+	 * TTY port has to be linked with the driver before register_console()
+	 * in uart_configure_port(), because user-space could open the console
+	 * immediately after.
+	 */
+	tty_port_link_device(port, drv->tty_driver, uport->line);
 	uart_configure_port(drv, state, uport);
 
 	port->console = uart_console(uport);