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

[pandora-kernel.git] / drivers / usb / serial / safe_serial.c

diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index 789771e..1e07dfa 100644 (file)
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -298,14 +298,14 @@ static int safe_write (struct usb_serial_port *port, const unsigned char *buf, i
                dbg ("%s - write request of 0 bytes", __FUNCTION__);
                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);
 
        packet_length = port->bulk_out_size;    // get max packetsize