From: Johan Hovold johan@kernel.org
commit 05f929b395dec8957b636ff14e66b277ed022ed9 upstream.
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 Reviewed-by: Andy Shevchenko andy.shevchenko@gmail.com Signed-off-by: Johan Hovold johan@kernel.org Link: https://lore.kernel.org/r/20211117100512.5058-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tty/serial/liteuart.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/tty/serial/liteuart.c +++ b/drivers/tty/serial/liteuart.c @@ -295,6 +295,7 @@ static int liteuart_remove(struct platfo 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;