From: Johan Hovold <johan@xxxxxxxxxx>
Date: Mon, 30 Sep 2019 17:12:41 +0200
> Fix NULL-pointer dereference on tty open due to a failure to handle a
> missing interrupt-in endpoint when probing modem ports:
>
> BUG: kernel NULL pointer dereference, address: 0000000000000006
> ...
> RIP: 0010:tiocmget_submit_urb+0x1c/0xe0 [hso]
> ...
> Call Trace:
> hso_start_serial_device+0xdc/0x140 [hso]
> hso_serial_open+0x118/0x1b0 [hso]
> tty_open+0xf1/0x490
>
> Fixes: 542f54823614 ("tty: Modem functions for the HSO driver")
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Applied, thanks.
