[39/84] usb: dwc3: gadget: don't prevent gadget from being probedif we fail

[Ben Hutchings]

3.2.50-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Felipe Balbi <balbi@xxxxxx>

commit cdcedd6981194e511cc206887db661d016069d68 upstream.

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.

Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/usb/dwc3/gadget.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1217,6 +1217,7 @@ err1:
 	__dwc3_gadget_ep_disable(dwc->eps[0]);
 
 err0:
+	dwc->gadget_driver = NULL;
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	return ret;

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