qla3xxx: bugfix for line omitted in previous patch.

This missing line caused transmit errors on the Qlogic 4032 chip.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index 3a14d19..d3f65da 100755
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -2210,7 +2210,7 @@
 {
 	struct oal *oal;
 	struct oal_entry *oal_entry;
-	int len = skb->len;
+	int len = skb_headlen(skb);
 	dma_addr_t map;
 	int err;
 	int completed_segs, i;