libertas_tf: fix skb tail pointer

skb->tail can't be meant here because it's not the same across 32/64 bit
compilations. This means there's no way the current driver can work on
64-bit architectures.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org [2.6.27]
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c
index 1cc03a8..59634c3 100644 (file)
--- a/drivers/net/wireless/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/libertas_tf/if_usb.c
@@ -331,7 +331,7 @@ static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,
        /* Fill the receive configuration URB and initialise the Rx call back */
        usb_fill_bulk_urb(cardp->rx_urb, cardp->udev,
                          usb_rcvbulkpipe(cardp->udev, cardp->ep_in),
-                         (void *) (skb->tail),
+                         skb_tail_pointer(skb),
                          MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp);
 
        cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;