Merge "usb: dwc3: gadget: fix isochronous transfer TRB preparing"

			trbs_left = DWC3_TRB_NUM;

	}

	/*

	 * If free_slot = DWC3_TRB_MASK-1 and trbs_left > 0 then we have a

	 * wraparound in the TRB buffer. Hence, trbs_left includes the link TRB

	 * and must be reduced by 1.

	 */

	if (usb_endpoint_xfer_isoc(dep->endpoint.desc) &&

		(dep->free_slot & DWC3_TRB_MASK) == DWC3_TRB_MASK-1)

			trbs_left--;

	list_for_each_entry_safe(req, n, &dep->request_list, list) {

		unsigned	length;

		dma_addr_t	dma;