usb: dwc3: ep0: fix GetStatus handling (again) (e2617796) · Commits · 戴 / test

previous commit fixed part of it but it was still calling usb_ep_queue() from IRQ context without loosing locks. That cannot be done otherwise we will have a recursive locking. Also, we need to assign the 'dep' pointer on dwc->ep0_usb_req otherwise we will have a NULL pointer dereference on dwc3_map_buffer_to_dma(). Signed-off-by:

Felipe Balbi <balbi@ti.com>

drivers/usb/dwc3/ep0.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -302,11 +302,14 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc,

		response_pkt = (__le16 *) dwc->setup_buf;
		*response_pkt = cpu_to_le16(usb_status);

		dep = dwc->eps[0];
		dwc->ep0_usb_req.dep = dep;
		dwc->ep0_usb_req.request.length = sizeof(*response_pkt);
		dwc->ep0_usb_req.request.dma = dwc->setup_buf_addr;
		dwc->ep0_usb_req.request.complete = dwc3_ep0_status_cmpl;
		return usb_ep_queue(&dwc->eps[0]->endpoint, &dwc->ep0_usb_req.request,
		GFP_ATOMIC);

		return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);
		}

		static int dwc3_ep0_handle_feature(struct dwc3 *dwc,

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