* [10/11] usb: dwc2: Add core state checking
@ 2018-01-24 13:44 Grigor Tovmasyan
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From: Grigor Tovmasyan @ 2018-01-24 13:44 UTC (permalink / raw)
To: John Youn, Felipe Balbi, Greg Kroah-Hartman, linux-usb; +Cc: Grigor Tovmasyan
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 <tovmasya@synopsys.com>
---
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 9dfb6e59fe83..223a0a10de0d 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1335,8 +1335,8 @@ 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;
}
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2018-01-24 13:44 [10/11] usb: dwc2: Add core state checking Grigor Tovmasyan
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