Merge "usb: f_qdss: Return -EINVAL instead of -EAGAIN if debug_inface is enabled"

		return -EIO;

	}

	/* If data_write_pool is empty & debug inface is set

	 * then return -EINVAL instead of -EAGAIN.

	 * qdss_write is expecting data_write_pool to

	 * be populated. But data_write_pool is populated only

	 * when debug_inface_enbled is not set.

	 */

	if (list_empty(&qdss->data_write_pool) &&

	    qdss->debug_inface_enabled) {

		pr_err("%s:error: Invalid operation.\n", __func__);

		spin_unlock_irqrestore(&qdss->lock, flags);

		return -EINVAL;

	}

	if (list_empty(&qdss->data_write_pool)) {

		pr_err("error: usb_qdss_data_write list is empty\n");

		pr_err_ratelimited(

			"error: usb_qdss_data_write list is empty\n");

		spin_unlock_irqrestore(&qdss->lock, flags);

		return -EAGAIN;

	}