--- drivers/usb/serial/ir-usb.c

+++ drivers/usb/serial/ir-usb.c

@@ -312,6 +312,7 @@ static int ir_open(struct tty_struct *tt

kfree(port->read_urb->transfer_buffer);

port->read_urb->transfer_buffer = buffer;

port->read_urb->transfer_buffer_length = buffer_size;

+ port->bulk_in_buffer = buffer;

buffer = kmalloc(buffer_size, GFP_KERNEL);

if (!buffer) {

@@ -321,6 +322,7 @@ static int ir_open(struct tty_struct *tt

kfree(port->write_urb->transfer_buffer);

port->write_urb->transfer_buffer = buffer;

port->write_urb->transfer_buffer_length = buffer_size;

+ port->bulk_out_buffer = buffer;

port->bulk_out_size = buffer_size;

}