From 94cc7aeaf6c0cff0b8aeb7cb3579cee46b923560 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 5 May 2021 11:19:16 +0200 Subject: USB: serial: make usb_serial_driver::write_room return uint Line disciplines expect a positive value or zero returned from tty->ops->write_room (invoked by tty_write_room). Both of them are being updated to return an unsigned int. Switch also usb_serial_driver::write_room and all its users. Signed-off-by: Jiri Slaby [ johan: amend commit message, drop unrelated comment change ] Signed-off-by: Johan Hovold --- drivers/usb/serial/opticon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/usb/serial/opticon.c') diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 40c713fae0c3..37b51947bd0b 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -267,7 +267,7 @@ error_no_buffer: return ret; } -static int opticon_write_room(struct tty_struct *tty) +static unsigned int opticon_write_room(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct opticon_private *priv = usb_get_serial_port_data(port); -- cgit v1.2.3