staging: vt6656: Include re_alloc_skb within lock.

Remove variable re_alloc_skb and merge code within urb->actual_length.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/usbpipe.c

@@ -276,7 +276,6 @@ static void s_nsBulkInUsbIoCompleteRead(struct urb *urb)
 	struct vnt_rcb *rcb = urb->context;
 	struct vnt_private *priv = rcb->pDevice;
 	unsigned long flags;
-	int re_alloc_skb = false;
 
 	switch (urb->status) {
 	case 0:
@@ -294,24 +293,22 @@ static void s_nsBulkInUsbIoCompleteRead(struct urb *urb)
 	if (urb->actual_length) {
 		spin_lock_irqsave(&priv->lock, flags);
 
-		if (vnt_rx_data(priv, rcb, urb->actual_length))
-			re_alloc_skb = true;
+		if (vnt_rx_data(priv, rcb, urb->actual_length)) {
+			rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
+			if (!rcb->skb) {
+				dev_dbg(&priv->usb->dev,
+					"Failed to re-alloc rx skb\n");
 
-		spin_unlock_irqrestore(&priv->lock, flags);
-	}
-
-	if (re_alloc_skb) {
-		rcb->skb = dev_alloc_skb(priv->rx_buf_sz);
-		if (!rcb->skb) {
-			dev_dbg(&priv->usb->dev, "Failed to re-alloc rx skb\n");
-
-			rcb->bBoolInUse = false;
-
-			return;
+				rcb->bBoolInUse = false;
+				spin_unlock_irqrestore(&priv->lock, flags);
+				return;
+			}
 		}
 
 		urb->transfer_buffer = skb_put(rcb->skb,
 						skb_tailroom(rcb->skb));
+
+		spin_unlock_irqrestore(&priv->lock, flags);
 	}
 
 	if (usb_submit_urb(urb, GFP_ATOMIC)) {