diff options
Diffstat (limited to 'drivers/usb/serial')
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 4058cee..1fe8545 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -269,12 +269,13 @@ static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) struct usb_device *dev = port->serial->dev; int retval; + dev_dbg(&port->dev, "%s - %02x\n", __func__, value); + retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, value, 0, NULL, 0, 100); - - dev_dbg(&port->dev, "%s - value = %d, retval = %d\n", __func__, - value, retval); + if (retval) + dev_err(&port->dev, "%s - failed: %d\n", __func__, retval); return retval; } |