serial: ifx6x60: fix memory leak

If tty_register_driver() failed then tty_driver is still alive.
Free it with put_tty_driver().

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/serial/ifx6x60.c b/drivers/serial/ifx6x60.c
index 3f8d5ee..ab93763 100644 (file)
--- a/drivers/serial/ifx6x60.c
+++ b/drivers/serial/ifx6x60.c
@@ -1384,6 +1384,7 @@ static int __init ifx_spi_init(void)
        if (result) {
                pr_err("%s: tty_register_driver failed(%d)",
                        DRVNAME, result);
+               put_tty_driver(tty_drv);
                return result;
        }