usb: dwc3: unmap the proper number of sg entries
num_sgs contains the number of sgs assigned by the gadget. num_mapped_sgs contains the number of mapped sgs which may differ from the gadget's values. For dma_unmap_sg() we have to provide the value which was returned by dma_map_sg(). Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
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@ -101,7 +101,7 @@ void dwc3_unmap_buffer_from_dma(struct dwc3_request *req)
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if (req->request.num_mapped_sgs) {
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req->request.dma = DMA_ADDR_INVALID;
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dma_unmap_sg(dwc->dev, req->request.sg,
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req->request.num_sgs,
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req->request.num_mapped_sgs,
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req->direction ? DMA_TO_DEVICE
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: DMA_FROM_DEVICE);
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