Commit 7a42d835 authored Jul 22, 2013 by Felipe Balbi

usb: dwc3: ep0: only change to ADDRESS if set_config() succeeds



In case we're switching back to USB_STATE_ADDRESS
from USB_STATE_CONFIGURED (if host sends
a set configuration command for configuration
zero), we should only switch if the request
is successfully processed by the gadget driver.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>

parent 5702f753

drivers/usb/dwc3/ep0.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -551,7 +551,7 @@ static int dwc3_ep0_set_config(struct dwc3 dwc, struct usb_ctrlrequest ctrl)

		case USB_STATE_CONFIGURED:
		ret = dwc3_ep0_delegate_req(dwc, ctrl);
		if (!cfg)
		if (!cfg && !ret)
		usb_gadget_set_state(&dwc->gadget,
		USB_STATE_ADDRESS);
		break;