1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index 1738b0b6a376..1b348df388ed 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -342,14 +342,14 @@ static int ir_write (struct usb_serial_port *port, const unsigned char *buf, int
         if (count == 0)
                 return 0;
 
-        spin_lock(&port->lock);
+        spin_lock_bh(&port->lock);
         if (port->write_urb_busy) {
-                spin_unlock(&port->lock);
+                spin_unlock_bh(&port->lock);
                 dbg("%s - already writing", __FUNCTION__);
                 return 0;
         }
         port->write_urb_busy = 1;
-        spin_unlock(&port->lock);
+        spin_unlock_bh(&port->lock);
 
         transfer_buffer = port->write_urb->transfer_buffer;
         transfer_size = min(count, port->bulk_out_size - 1);