diff options
Diffstat (limited to 'drivers/usb/serial/visor.c')
| -rw-r--r-- | drivers/usb/serial/visor.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 1129aa73c23e..7573ec8a084f 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -257,24 +257,18 @@ static void visor_close(struct usb_serial_port *port) { unsigned char *transfer_buffer; - /* shutdown our urbs */ usb_serial_generic_close(port); usb_kill_urb(port->interrupt_in_urb); - mutex_lock(&port->serial->disc_mutex); - if (!port->serial->disconnected) { - /* Try to send shutdown message, unless the device is gone */ - transfer_buffer = kmalloc(0x12, GFP_KERNEL); - if (transfer_buffer) { - usb_control_msg(port->serial->dev, + transfer_buffer = kmalloc(0x12, GFP_KERNEL); + if (!transfer_buffer) + return; + usb_control_msg(port->serial->dev, usb_rcvctrlpipe(port->serial->dev, 0), VISOR_CLOSE_NOTIFICATION, 0xc2, 0x0000, 0x0000, transfer_buffer, 0x12, 300); - kfree(transfer_buffer); - } - } - mutex_unlock(&port->serial->disc_mutex); + kfree(transfer_buffer); } static void visor_read_int_callback(struct urb *urb) |