Merge "usb: gadget: f_cdev: Fix NULL pointer dereference in cser_free_inst"

/*

 * Copyright (c) 2011, 2013-2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2011, 2013-2017, The Linux Foundation. All rights reserved.

 * Linux Foundation chooses to take subject only to the GPLv2 license terms,

 * and distributes only under these terms.

 *

	opts = container_of(fi, struct f_cdev_opts, func_inst);

	if (opts->port) {

		device_destroy(fcdev_classp, MKDEV(major, opts->port->minor));

		cdev_del(&opts->port->fcdev_cdev);

	}

	usb_cser_chardev_deinit();

	kfree(opts->func_name);

	kfree(opts->port);