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isdn: hisax: Use l2headersize() instead of dup (and buggy) func.

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There was a bug in my commit c978e7bb77
("hisax: Fix unchecked alloc_skb() return.")

One of the l2->flag checks is wrong.

Even worse it turns out I'm duplicating an existing function,
so use that instead.

Reported-by: Milton Miller <miltonm@bga.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-02-15 12:18:09 -08:00
parent d11327ad66
commit 6d90e8f456
1 changed files with 1 additions and 8 deletions
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9
drivers/isdn/hisax/isdnl2.c
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@ -1243,13 +1243,6 @@ l2_st7_tout_203(struct FsmInst *fi, int event, void *arg)
st->l2.rc = 0;
}
static int l2_hdr_space_needed(struct Layer2 *l2)
{
int len = test_bit(FLG_LAPD, &l2->flag) ? 2 : 1;
return len + (test_bit(FLG_LAPD, &l2->flag) ? 2 : 1);
}
static void
l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
{
@ -1268,7 +1261,7 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg)
if (!skb)
return;
hdr_space_needed = l2_hdr_space_needed(l2);
hdr_space_needed = l2headersize(l2, 0);
if (hdr_space_needed > skb_headroom(skb)) {
struct sk_buff *orig_skb = skb;