rt2x00: Fix header_length in rt2x00lib_txdone

Put the assignment of header_length after pull out extra tx headroom

Signed-off-by: RA-Jay Hung <jay_hung@ralinktech.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 3afa2a3ebee4..c879f9a7037c 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -250,10 +250,9 @@ void rt2x00lib_txdone(struct queue_entry *entry,
         struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
         struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
         enum data_queue_qid qid = skb_get_queue_mapping(entry->skb);
-        unsigned int header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
+        unsigned int header_length, i;
         u8 rate_idx, rate_flags, retry_rates;
         u8 skbdesc_flags = skbdesc->flags;
-        unsigned int i;
         bool success;
 
         /*
@@ -272,6 +271,11 @@ void rt2x00lib_txdone(struct queue_entry *entry,
         skbdesc->flags &= ~SKBDESC_DESC_IN_SKB;
 
         /*
+         * Determine the length of 802.11 header.
+         */
+        header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
+
+        /*
          * Remove L2 padding which was added during
          */
         if (test_bit(DRIVER_REQUIRE_L2PAD, &rt2x00dev->flags))