mxser: remove tty->driver_data NULL check

Noone sets tty->driver_data to NULL in the driver, so there is no point
to check that in mxser_close(). Remove the check.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20211118073125.12283-8-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 6e5e1c7..6b47a06 100644 (file)
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -905,8 +905,6 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
        struct mxser_port *info = tty->driver_data;
        struct tty_port *port = &info->port;
 
-       if (info == NULL)
-               return;
        if (tty_port_close_start(port, tty, filp) == 0)
                return;
        mutex_lock(&port->mutex);