usb-serial: possible irq lock inversion (PPP vs. usb/serial)

=========================================================
[ INFO: possible irq lock inversion dependency detected ]

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index e49f40913c27..a764ff4e326c 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -256,14 +256,14 @@ static int omninet_write (struct usb_serial_port *port, const unsigned char *buf
                 return (0);
         }
 
-        spin_lock(&wport->lock);
+        spin_lock_bh(&wport->lock);
         if (wport->write_urb_busy) {
-                spin_unlock(&wport->lock);
+                spin_unlock_bh(&wport->lock);
                 dbg("%s - already writing", __FUNCTION__);
                 return 0;
         }
         wport->write_urb_busy = 1;
-        spin_unlock(&wport->lock);
+        spin_unlock_bh(&wport->lock);
 
         count = (count > OMNINET_BULKOUTSIZE) ? OMNINET_BULKOUTSIZE : count;