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path: root/drivers/usb/serial/usb-serial.c
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Diffstat (limited to 'drivers/usb/serial/usb-serial.c')
-rw-r--r--drivers/usb/serial/usb-serial.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 98b33b1b5357..eeb441c77207 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -376,7 +376,7 @@ exit:
return retval;
}
-static int serial_write_room(struct tty_struct *tty)
+static unsigned int serial_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
@@ -385,7 +385,7 @@ static int serial_write_room(struct tty_struct *tty)
return port->serial->type->write_room(tty);
}
-static int serial_chars_in_buffer(struct tty_struct *tty)
+static unsigned int serial_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct usb_serial *serial = port->serial;