diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2021-05-05 12:19:16 +0300 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2021-05-19 11:56:40 +0300 |
| commit | 94cc7aeaf6c0cff0b8aeb7cb3579cee46b923560 (patch) | |
| tree | 480c01d00d7ff2fd9bd25f7becd79625a8bd771b /drivers/usb/serial/oti6858.c | |
| parent | d07f6ca923ea0927a1024dfccafc5b53b61cfecc (diff) | |
| download | linux-94cc7aeaf6c0cff0b8aeb7cb3579cee46b923560.tar.xz | |
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 <jslaby@suse.cz>
[ johan: amend commit message, drop unrelated comment change ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial/oti6858.c')
| -rw-r--r-- | drivers/usb/serial/oti6858.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index 65cd0341fa78..4ab9f335dd0e 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -126,7 +126,7 @@ static void oti6858_read_bulk_callback(struct urb *urb); static void oti6858_write_bulk_callback(struct urb *urb); static int oti6858_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); -static int oti6858_write_room(struct tty_struct *tty); +static unsigned int oti6858_write_room(struct tty_struct *tty); static int oti6858_chars_in_buffer(struct tty_struct *tty); static int oti6858_tiocmget(struct tty_struct *tty); static int oti6858_tiocmset(struct tty_struct *tty, @@ -363,10 +363,10 @@ static int oti6858_write(struct tty_struct *tty, struct usb_serial_port *port, return count; } -static int oti6858_write_room(struct tty_struct *tty) +static unsigned int oti6858_write_room(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - int room = 0; + unsigned int room; unsigned long flags; spin_lock_irqsave(&port->lock, flags); |