diff options
Diffstat (limited to 'drivers/serial/usbtty.c')
| -rw-r--r-- | drivers/serial/usbtty.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/serial/usbtty.c b/drivers/serial/usbtty.c index 02f8edf200..4f4eb02de0 100644 --- a/drivers/serial/usbtty.c +++ b/drivers/serial/usbtty.c @@ -849,17 +849,9 @@ static int write_buffer (circbuf_t * buf) &endpoint_instance[tx_endpoint]; struct urb *current_urb = NULL; - current_urb = next_urb (device_instance, endpoint); - - if (!current_urb) { - TTYERR ("current_urb is NULL, buf->size %d\n", - buf->size); - return 0; - } - /* TX data still exists - send it now */ - if(endpoint->sent < current_urb->actual_length){ + if(endpoint->sent < endpoint->tx_urb->actual_length){ if(udc_endpoint_write (endpoint)){ /* Write pre-empted by RX */ return -1; @@ -878,6 +870,8 @@ static int write_buffer (circbuf_t * buf) */ while (buf->size > 0) { + current_urb = next_urb (device_instance, endpoint); + dest = (char*)current_urb->buffer + current_urb->actual_length; |