Deregister the port when unbinding the driver to prevent it from being used after releasing the driver data and leaking memory allocated by serial core.

Fixes: 1da81e5562fa ("drivers/tty/serial: add LiteUART driver") Cc: stable@vger.kernel.org # 5.11 Cc: Filip Kokosinski fkokosinski@antmicro.com Cc: Mateusz Holenko mholenko@antmicro.com Reviewed-by: Stafford Horne shorne@gmail.com Signed-off-by: Johan Hovold johan@kernel.org --- drivers/tty/serial/liteuart.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/liteuart.c b/drivers/tty/serial/liteuart.c index f075f4ff5fcf..da792d0df790 100644 --- a/drivers/tty/serial/liteuart.c +++ b/drivers/tty/serial/liteuart.c @@ -295,6 +295,7 @@ static int liteuart_remove(struct platform_device *pdev) struct uart_port *port = platform_get_drvdata(pdev); struct liteuart_port *uart = to_liteuart_port(port);

+ uart_remove_one_port(&liteuart_driver, port); xa_erase(&liteuart_array, uart->id);

return 0;