usb: dwc3: gadget: set request dma to invalid when unmapping



if we don't set DMA address to invalid when unmapping,
we might fall in a situation where request buffer
can't be mapped to DMA again.

Signed-off-by: Felipe Balbi <balbi@ti.com>

parent c611ccb4

drivers/usb/dwc3/gadget.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -83,6 +83,7 @@ void dwc3_unmap_buffer_from_dma(struct dwc3_request *req)
		req->request.length, req->direction
		? DMA_TO_DEVICE : DMA_FROM_DEVICE);
		req->mapped = 0;
		req->request.dma = DMA_ADDR_INVALID;
		} else {
		dma_sync_single_for_cpu(dwc->dev, req->request.dma,
		req->request.length, req->direction