usb: dwc3: gadget: Check MPS of the request length (ca3df346) · Commits · 戴 / test

When preparing for SG, not all the entries are prepared at once. When resume, don't use the remaining request length to calculate for MPS alignment. Use the entire request->length to do that. Cc: stable@vger.kernel.org Fixes: ("usb: dwc3: gadget: Don't setup more than requested") Signed-off-by:

Thinh Nguyen <Thinh.Nguyen@synopsys.com> Signed-off-by:

Felipe Balbi <balbi@kernel.org>

drivers/usb/dwc3/gadget.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -1098,6 +1098,8 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep,
		struct scatterlist *s;
		int i;
		unsigned int length = req->request.length;
		unsigned int maxp = usb_endpoint_maxp(dep->endpoint.desc);
		unsigned int rem = length % maxp;
		unsigned int remaining = req->request.num_mapped_sgs
		- req->num_queued_sgs;

		@@ -1109,8 +1111,6 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep,
		length -= sg_dma_len(s);

		for_each_sg(sg, s, remaining, i) {
		unsigned int maxp = usb_endpoint_maxp(dep->endpoint.desc);
		unsigned int rem = length % maxp;
		unsigned int trb_length;
		unsigned int chain = true;

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