diff options
-rw-r--r-- | drivers/usb/serial/option.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 9823e79..1c52c6e 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1955,6 +1955,7 @@ static int option_send_setup(struct usb_serial_port *port) struct usb_wwan_port_private *portdata; int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber; int val = 0; + int res; dbg("%s", __func__); if (is_blacklisted(ifNum, OPTION_BLACKLIST_SENDSETUP, @@ -1970,9 +1971,16 @@ static int option_send_setup(struct usb_serial_port *port) if (portdata->rts_state) val |= 0x02; - return usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), + res = usb_autopm_get_interface(serial->interface); + if (res) + return res; + + res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 0x22, 0x21, val, ifNum, NULL, 0, USB_CTRL_SET_TIMEOUT); + + usb_autopm_put_interface(serial->interface); + + return res; } MODULE_AUTHOR(DRIVER_AUTHOR); |