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path: root/drivers/usb/serial/digi_acceleport.c
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Diffstat (limited to 'drivers/usb/serial/digi_acceleport.c')
-rw-r--r--drivers/usb/serial/digi_acceleport.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 8b2f06539f2c..5deb900450ee 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -223,7 +223,7 @@ static int digi_tiocmset(struct tty_struct *tty, unsigned int set,
static int digi_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static void digi_write_bulk_callback(struct urb *urb);
-static int digi_write_room(struct tty_struct *tty);
+static unsigned int digi_write_room(struct tty_struct *tty);
static int digi_chars_in_buffer(struct tty_struct *tty);
static int digi_open(struct tty_struct *tty, struct usb_serial_port *port);
static void digi_close(struct usb_serial_port *port);
@@ -1020,11 +1020,11 @@ static void digi_write_bulk_callback(struct urb *urb)
tty_port_tty_wakeup(&port->port);
}
-static int digi_write_room(struct tty_struct *tty)
+static unsigned int digi_write_room(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct digi_port *priv = usb_get_serial_port_data(port);
- int room;
+ unsigned int room;
unsigned long flags = 0;
spin_lock_irqsave(&priv->dp_port_lock, flags);
@@ -1035,7 +1035,7 @@ static int digi_write_room(struct tty_struct *tty)
room = port->bulk_out_size - 2 - priv->dp_out_buf_len;
spin_unlock_irqrestore(&priv->dp_port_lock, flags);
- dev_dbg(&port->dev, "digi_write_room: port=%d, room=%d\n", priv->dp_port_num, room);
+ dev_dbg(&port->dev, "digi_write_room: port=%d, room=%u\n", priv->dp_port_num, room);
return room;
}