Commit 4e1f2e34 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman

USB: mxuport: fix null deref when used as a console

commit db81de76 upstream.

Fix null-pointer dereference at probe when the device is used as a
console, in which case the tty argument to open will be NULL.

Fixes: ee467a1f ("USB: serial: add Moxa UPORT 12XX/14XX/16XX
driver")
Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Acked-by: default avatarGreg Kroah-Hartman <greg@kroah.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 63834eef
......@@ -1284,7 +1284,8 @@ static int mxuport_open(struct tty_struct *tty, struct usb_serial_port *port)
}
/* Initial port termios */
mxuport_set_termios(tty, port, NULL);
if (tty)
mxuport_set_termios(tty, port, NULL);
/*
* TODO: use RQ_VENDOR_GET_MSR, once we know what it
......
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