diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00queue.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00queue.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index a3d79c7a21c..35133d8558b 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -199,15 +199,18 @@ void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length) void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length) { - unsigned int l2pad = L2PAD_SIZE(header_length); + /* + * L2 padding is only present if the skb contains more than just the + * IEEE 802.11 header. + */ + unsigned int l2pad = (skb->len > header_length) ? + L2PAD_SIZE(header_length) : 0; if (!l2pad) return; - memmove(skb->data + header_length, skb->data + header_length + l2pad, - skb->len - header_length - l2pad); - - skb_trim(skb, skb->len - l2pad); + memmove(skb->data + l2pad, skb->data, header_length); + skb_pull(skb, l2pad); } static void rt2x00queue_create_tx_descriptor_seq(struct queue_entry *entry, |