Merge "msm: mdss: remove client from device list if failed to register"

/*

 * Copyright (c) 2015, The Linux Foundation. All rights reserved.

 * Copyright (c) 2015,2017, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

		if (rc) {

			pr_err("%s: Client register failed (%s, %d)\n",

			       __func__, info->chip_name, info->instance_id);

			/* remove the client from list before freeing */

			mutex_lock_nested(&device->dev_mutex,

						SINGLE_DEPTH_NESTING);

			list_del(&client->list);

			mutex_unlock(&device->dev_mutex);

			kfree(client);

			mutex_unlock(&register_mutex);

			return ERR_PTR(rc);