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Commit 00aa018d authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "usb: dwc3-msm: Fix NULL pointer dereference in gsi_ring_db"

parents 3bfe4375 f51dd69f

drivers/usb/dwc3/dwc3-msm.c

+8 −4
Original line number Diff line number Diff line
@@ -1047,13 +1047,17 @@ static void gsi_ring_db(struct usb_ep *ep, struct usb_gsi_request *request) 


	gsi_dbl_address_lsb = devm_ioremap_nocache(mdwc->dev,

				request->db_reg_phs_addr_lsb, sizeof(u32));

	if (!gsi_dbl_address_lsb)

		dev_dbg(mdwc->dev, "Failed to get GSI DBL address LSB\n");

	if (!gsi_dbl_address_lsb) {

		dev_err(mdwc->dev, "Failed to get GSI DBL address LSB\n");

		return;

	}



	gsi_dbl_address_msb = devm_ioremap_nocache(mdwc->dev,

			request->db_reg_phs_addr_msb, sizeof(u32));

	if (!gsi_dbl_address_msb)

		dev_dbg(mdwc->dev, "Failed to get GSI DBL address MSB\n");

	if (!gsi_dbl_address_msb) {

		dev_err(mdwc->dev, "Failed to get GSI DBL address MSB\n");

		return;

	}



	offset = dwc3_trb_dma_offset(dep, &dep->trb_pool[num_trbs-1]);

	dev_dbg(mdwc->dev, "Writing link TRB addr: %pa to %pK (%x) for ep:%s\n",