From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Sun, 6 Jul 2014 22:19:46 +0000 (+0100)
Subject: staging: vt6656: s_nsBulkInUsbIoCompleteRead check that used sk_buff is clean and... 
X-Git-Tag: v3.17-rc1~123^2~1173
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=618ff9cebe873681e6b0edab15528890577afd27;p=karo-tx-linux.git

staging: vt6656: s_nsBulkInUsbIoCompleteRead check that used sk_buff is clean and ready to reuse.

skb_push the headroom and trimmed back to 0

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

diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index c8b0ed5adf7a..dd031bbb25ba 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -303,6 +303,9 @@ static void s_nsBulkInUsbIoCompleteRead(struct urb *urb)
 				spin_unlock_irqrestore(&priv->lock, flags);
 				return;
 			}
+		} else {
+			skb_push(rcb->skb, skb_headroom(rcb->skb));
+			skb_trim(rcb->skb, 0);
 		}
 
 		urb->transfer_buffer = skb_put(rcb->skb,