From 88b02f2cb1e13e1ab161c5cb2d5c69f76fe05be2 Mon Sep 17 00:00:00 2001 From: Grigor Tovmasyan Date: Wed, 24 Jan 2018 17:44:25 +0400 Subject: [PATCH] usb: dwc2: Add core state checking Added core state checking in dwc2_hsotg_ep_queue() function to make sure that application will submit requests only in L0 state. Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/gadget.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 706fecf16b52..d67f9aeedf84 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -1297,8 +1297,8 @@ static int dwc2_hsotg_ep_queue(struct usb_ep *ep, struct usb_request *req, req->zero, req->short_not_ok); /* Prevent new request submission when controller is suspended */ - if (hs->lx_state == DWC2_L2) { - dev_dbg(hs->dev, "%s: don't submit request while suspended\n", + if (hs->lx_state != DWC2_L0) { + dev_dbg(hs->dev, "%s: submit request only in active state\n", __func__); return -EAGAIN; } -- 2.11.0