package/madwifi/patches/331-memory_alloc.patch

   1 --- a/ath/if_ath.c
   2 +++ b/ath/if_ath.c
   3 @@ -3320,17 +3320,18 @@
   4          * without affecting any other bridge ports. */
   5         if (skb_cloned(skb)) {
   6                 /* Remember the original SKB so we can free up our references */
   7 -               struct sk_buff *skb_orig = skb;
   8 -               skb = skb_copy(skb, GFP_ATOMIC);
   9 -               if (skb == NULL) {
  10 +               struct sk_buff *skb_new;
  11 +               skb_new = skb_copy(skb, GFP_ATOMIC);
  12 +               if (skb_new == NULL) {
  13                         DPRINTF(sc, ATH_DEBUG_XMIT,
  14                                 "Dropping; skb_copy failure.\n");
  15                         /* No free RAM, do not requeue! */
  16                         goto hardstart_fail;
  17                 }
  18 -               ieee80211_skb_copy_noderef(skb_orig, skb);
  19 -               ieee80211_dev_kfree_skb(&skb_orig);
  20 -       }
  21 +               ieee80211_skb_copy_noderef(skb, skb_new);
  22 +               ieee80211_dev_kfree_skb(&skb);
  23 +               skb = skb_new;
  24 +       }
  25         eh = (struct ether_header *)skb->data;
  26
  27  #ifdef ATH_SUPERG_FF
  28 @@ -3601,6 +3602,8 @@
  29         sc->sc_stats.ast_tx_mgmt++;
  30         return 0;
  31  bad:
  32 +       if (skb)
  33 +               ieee80211_dev_kfree_skb(&skb);
  34         ath_return_txbuf(sc, &bf);
  35         return error;
  36  }