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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-24 11:36:31 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-24 11:36:31 -0800 |
| commit | f227e08b71b9c273eaa29a57370a3a5b833aa382 (patch) | |
| tree | 9f1483776a2bde3bb1a6bd744e69acf19f6f3428 /drivers/isdn/hisax/isdnl2.c | |
| parent | fec38d1752c01ad72789bac9f1a128f7e933735d (diff) | |
| parent | f5412be599602124d2bdd49947b231dd77c0bf99 (diff) | |
| download | kernel_samsung_smdk4412-f227e08b71b9c273eaa29a57370a3a5b833aa382.tar.gz kernel_samsung_smdk4412-f227e08b71b9c273eaa29a57370a3a5b833aa382.tar.bz2 kernel_samsung_smdk4412-f227e08b71b9c273eaa29a57370a3a5b833aa382.zip | |
Merge 2.6.38-rc6 into tty-next
This was to resolve a merge issue with drivers/char/Makefile and
drivers/tty/serial/68328serial.c
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/isdn/hisax/isdnl2.c')
| -rw-r--r-- | drivers/isdn/hisax/isdnl2.c | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/drivers/isdn/hisax/isdnl2.c b/drivers/isdn/hisax/isdnl2.c index 0858791978d..cfff0c41d29 100644 --- a/drivers/isdn/hisax/isdnl2.c +++ b/drivers/isdn/hisax/isdnl2.c @@ -1247,10 +1247,10 @@ static void l2_pull_iqueue(struct FsmInst *fi, int event, void *arg) { struct PStack *st = fi->userdata; - struct sk_buff *skb, *oskb; + struct sk_buff *skb; struct Layer2 *l2 = &st->l2; u_char header[MAX_HEADER_LEN]; - int i; + int i, hdr_space_needed; int unsigned p1; u_long flags; @@ -1261,6 +1261,16 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg) if (!skb) 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; + } + } spin_lock_irqsave(&l2->lock, flags); if(test_bit(FLG_MOD128, &l2->flag)) p1 = (l2->vs - l2->va) % 128; @@ -1285,19 +1295,7 @@ l2_pull_iqueue(struct FsmInst *fi, int event, void *arg) l2->vs = (l2->vs + 1) % 8; } spin_unlock_irqrestore(&l2->lock, flags); - p1 = skb->data - skb->head; - if (p1 >= i) - memcpy(skb_push(skb, i), header, i); - else { - printk(KERN_WARNING - "isdl2 pull_iqueue skb header(%d/%d) too short\n", i, p1); - oskb = skb; - skb = alloc_skb(oskb->len + i, GFP_ATOMIC); - memcpy(skb_put(skb, i), header, i); - skb_copy_from_linear_data(oskb, - skb_put(skb, oskb->len), oskb->len); - dev_kfree_skb(oskb); - } + memcpy(skb_push(skb, i), header, i); st->l2.l2l1(st, PH_PULL | INDICATION, skb); test_and_clear_bit(FLG_ACK_PEND, &st->l2.flag); if (!test_and_set_bit(FLG_T200_RUN, &st->l2.flag)) { |