diff options
| -rw-r--r-- | drivers/usb/serial/generic.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index b63ce023f96f..d7f39ea7d6ac 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -359,16 +359,29 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb) dev_dbg(&port->dev, "%s - urb %d, len %d\n", __func__, i, urb->actual_length); - - if (urb->status) { - dev_dbg(&port->dev, "%s - non-zero urb status: %d\n", - __func__, urb->status); + switch (urb->status) { + case 0: + break; + case -ENOENT: + case -ECONNRESET: + case -ESHUTDOWN: + dev_dbg(&port->dev, "%s - urb stopped: %d\n", + __func__, urb->status); + return; + case -EPIPE: + dev_err(&port->dev, "%s - urb stopped: %d\n", + __func__, urb->status); return; + default: + dev_err(&port->dev, "%s - nonzero urb status: %d\n", + __func__, urb->status); + goto resubmit; } usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data); port->serial->type->process_read_urb(urb); +resubmit: /* Throttle the device if requested by tty */ spin_lock_irqsave(&port->lock, flags); port->throttled = port->throttle_req; |