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path: root/drivers/usb/serial/opticon.c
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Diffstat (limited to 'drivers/usb/serial/opticon.c')
-rw-r--r--drivers/usb/serial/opticon.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 40c713fae0c3..aed28c35caff 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);
@@ -289,12 +289,12 @@ static int opticon_write_room(struct tty_struct *tty)
return 2048;
}
-static int opticon_chars_in_buffer(struct tty_struct *tty)
+static unsigned int opticon_chars_in_buffer(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct opticon_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
- int count;
+ unsigned int count;
spin_lock_irqsave(&priv->lock, flags);
count = priv->outstanding_bytes;