diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index ea8e3160d05ebd703a80d223a05da59d01bdd621..e5ce4f0bb7cca6b5bf2d94fbc36368a05729cefe 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -933,28 +933,24 @@ static void clean_req (struct usb_ep *ep, struct usb_request *req)
 static void ep0_complete (struct usb_ep *ep, struct usb_request *req)
 {
 	struct dev_data		*dev = ep->driver_data;
+	unsigned long		flags;
 	int			free = 1;
 
 	/* for control OUT, data must still get to userspace */
+	spin_lock_irqsave(&dev->lock, flags);
 	if (!dev->setup_in) {
 		dev->setup_out_error = (req->status != 0);
 		if (!dev->setup_out_error)
 			free = 0;
 		dev->setup_out_ready = 1;
 		ep0_readable (dev);
-	} else {
-		unsigned long	flags;
-
-		spin_lock_irqsave(&dev->lock, flags);
-		if (dev->state == STATE_DEV_SETUP)
-			dev->state = STATE_DEV_CONNECTED;
-		spin_unlock_irqrestore(&dev->lock, flags);
 	}
 
 	/* clean up as appropriate */
 	if (free && req->buf != &dev->rbuf)
 		clean_req (ep, req);
 	req->complete = epio_complete;
+	spin_unlock_irqrestore(&dev->lock, flags);
 }
 
 static int setup_req (struct usb_ep *ep, struct usb_request *req, u16 len)
@@ -1036,6 +1032,13 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 			spin_lock_irq (&dev->lock);
 			if (retval)
 				goto done;
+
+			if (dev->state != STATE_DEV_SETUP) {
+				retval = -ECANCELED;
+				goto done;
+			}
+			dev->state = STATE_DEV_CONNECTED;
+
 			if (dev->setup_out_error)
 				retval = -EIO;
 			else {
@@ -1187,6 +1190,7 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 		if (dev->setup_in) {
 			retval = setup_req (dev->gadget->ep0, dev->req, len);
 			if (retval == 0) {
+				dev->state = STATE_DEV_CONNECTED;
 				spin_unlock_irq (&dev->lock);
 				if (copy_from_user (dev->req->buf, buf, len))
 					retval = -EFAULT;