Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / drivers / isdn / hisax / isdnl2.c

diff --git a/drivers/isdn/hisax/isdnl2.c b/drivers/isdn/hisax/isdnl2.c
index 18accb0a79cc51dea2d1851fc9a27891e8d79d6f..c53a53f6efb6a136ec09075996bd89081e50e536 100644 (file)
--- a/drivers/isdn/hisax/isdnl2.c
+++ b/drivers/isdn/hisax/isdnl2.c
@@ -1247,7 +1247,7 @@ static void
 l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
 {
        struct PStack *st = fi->userdata;
-       struct sk_buff *skb;
+       struct sk_buff *skb, *nskb;
        struct Layer2 *l2 = &st->l2;
        u_char header[MAX_HEADER_LEN];
        int i, hdr_space_needed;
@@ -1262,14 +1262,10 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
                return;
 
        hdr_space_needed = l2headersize(l2, 0);
-       if (hdr_space_needed > skb_headroom(skb)) {
-               struct sk_buff *orig_skb = skb;
-
-               skb = skb_realloc_headroom(skb, hdr_space_needed);
-               if (!skb) {
-                       dev_kfree_skb(orig_skb);
-                       return;
-               }
+       nskb = skb_realloc_headroom(skb, hdr_space_needed);
+       if (!nskb) {
+               skb_queue_head(&l2->i_queue, skb);
+               return;
        }
        spin_lock_irqsave(&l2->lock, flags);
        if (test_bit(FLG_MOD128, &l2->flag))
@@ -1282,7 +1278,7 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
                       p1);
                dev_kfree_skb(l2->windowar[p1]);
        }
-       l2->windowar[p1] = skb_clone(skb, GFP_ATOMIC);
+       l2->windowar[p1] = skb;
 
        i = sethdraddr(&st->l2, header, CMD);
 
@@ -1295,8 +1291,8 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
                l2->vs = (l2->vs + 1) % 8;
        }
        spin_unlock_irqrestore(&l2->lock, flags);
-       memcpy(skb_push(skb, i), header, i);
-       st->l2.l2l1(st, PH_PULL | INDICATION, skb);
+       memcpy(skb_push(nskb, i), header, i);
+       st->l2.l2l1(st, PH_PULL | INDICATION, nskb);
        test_and_clear_bit(FLG_ACK_PEND, &st->l2.flag);
        if (!test_and_set_bit(FLG_T200_RUN, &st->l2.flag)) {
                FsmDelTimer(&st->l2.t203, 13);