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

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

diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 1727135..21cbaa0 100644 (file)
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -175,14 +175,14 @@ int usb_serial_generic_write(struct usb_serial_port *port, const unsigned char *
 
        /* only do something if we have a bulk out endpoint */
        if (serial->num_bulk_out) {
-               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);
 
                count = (count > port->bulk_out_size) ? port->bulk_out_size : count;