usb: dwc3: ep0: remove second giveback in error case

We already give requests back in dwc3_ep0_stall_and_restart() so
doing it again here will most likely corrupt the list.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 95ce96a..e48dce5 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -587,7 +587,6 @@
 		/* for some reason we did not get everything out */
 
 		dwc3_ep0_stall_and_restart(dwc);
-		dwc3_gadget_giveback(dep, r, -ECONNRESET);
 	} else {
 		/*
 		 * handle the case where we have to send a zero packet. This