From: Felipe Balbi <balbi@ti.com>
Date: Mon, 15 Jul 2013 09:36:35 +0000 (+0300)
Subject: usb: dwc3: gadget: don't prevent gadget from being probed if we fail
X-Git-Tag: v3.11-rc3~9^2~20^2~15
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=cdcedd6981194e511cc206887db661d016069d68;p=~emulex%2Finfiniband.git

usb: dwc3: gadget: don't prevent gadget from being probed if we fail

In case we fail our ->udc_start() callback, we
should be ready to accept another modprobe following
the failed one.

We had forgotten to clear dwc->gadget_driver back
to NULL and, because of that, we were preventing
gadget driver modprobe from being retried.

Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index b5e5b35df49..f77083fedc6 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1584,6 +1584,7 @@ err1:
 	__dwc3_gadget_ep_disable(dwc->eps[0]);
 
 err0:
+	dwc->gadget_driver = NULL;
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	return ret;