From: Robert Baldyga <r.baldyga@samsung.com>
Date: Tue, 9 Sep 2014 08:44:13 +0000 (+0200)
Subject: usb: dwc2/gadget: avoid disabling ep0
X-Git-Tag: v3.16.4~211
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3d275c4bc696484bf5972284cfdc6159d2237ca3;p=thirdparty%2Fkernel%2Fstable.git

usb: dwc2/gadget: avoid disabling ep0

commit 604eac3c0c69e98f2fd0133305f9e777418f1d3b upstream.

Endpoint 0 should not be disabled, so we start loop counter from number 1.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 2d48ffba8bb03..a0d2f31b30cc4 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2896,7 +2896,7 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget,
 		return -ENODEV;
 
 	/* all endpoints should be shutdown */
-	for (ep = 0; ep < hsotg->num_of_eps; ep++)
+	for (ep = 1; ep < hsotg->num_of_eps; ep++)
 		s3c_hsotg_ep_disable(&hsotg->eps[ep].ep);
 
 	spin_lock_irqsave(&hsotg->lock, flags);