diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/serial/ipaq.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 9840bade79f..bfc6998cd16 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -652,11 +652,6 @@ static int ipaq_open(struct usb_serial_port *port, struct file *filp) port->bulk_out_size = port->write_urb->transfer_buffer_length = URBDATA_SIZE; msleep(1000*initial_wait); - /* Start reading from the device */ - usb_fill_bulk_urb(port->read_urb, serial->dev, - usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, - ipaq_read_bulk_callback, port); /* * Send out control message observed in win98 sniffs. Not sure what @@ -670,18 +665,31 @@ static int ipaq_open(struct usb_serial_port *port, struct file *filp) result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21, 0x1, 0, NULL, 0, 100); - if (result == 0) { - result = usb_submit_urb(port->read_urb, GFP_KERNEL); - if (result) { - err("%s - failed submitting read urb, error %d", __FUNCTION__, result); - goto error; - } - return 0; - } + if (!result) + break; + msleep(1000); } - err("%s - failed doing control urb, error %d", __FUNCTION__, result); - goto error; + + if (!retries && result) { + err("%s - failed doing control urb, error %d", __FUNCTION__, + result); + goto error; + } + + /* Start reading from the device */ + usb_fill_bulk_urb(port->read_urb, serial->dev, + usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, + ipaq_read_bulk_callback, port); + + result = usb_submit_urb(port->read_urb, GFP_KERNEL); + if (result) { + err("%s - failed submitting read urb, error %d", __FUNCTION__, result); + goto error; + } + + return 0; enomem: result = -ENOMEM; |