From: Felipe Balbi Date: Tue, 29 Nov 2011 08:35:47 +0000 (+0200) Subject: usb: dwc3: ep0: fix GetStatus handling (again) X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e2617796053437df586c53e462076f74bcf268b4;p=linux-beck.git usb: dwc3: ep0: fix GetStatus handling (again) 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 --- diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 1ba86a114655..d6bfc73dedbd 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -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,