rt2x00: Only remove L2 padding in received frames if there is payload.

L2 padding will only be present when there is actual payload present.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <ivdoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index cc6bcc5a20c7..d7711e4d4751 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -401,7 +401,9 @@ void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
             (rxdesc.flags & RX_FLAG_IV_STRIPPED))
                 rt2x00crypto_rx_insert_iv(entry->skb, header_length,
                                           &rxdesc);
-        else if (rxdesc.dev_flags & RXDONE_L2PAD)
+        else if (header_length &&
+                 (rxdesc.size > header_length) &&
+                 (rxdesc.dev_flags & RXDONE_L2PAD))
                 rt2x00queue_remove_l2pad(entry->skb, header_length);
         else
                 rt2x00queue_align_payload(entry->skb, header_length);