enic: Call dev_kfree_skb_any instead of dev_kfree_skb.

Replace dev_kfree_skb with dev_kfree_skb_any in enic_hard_start_xmit
that can be called in hard irq and other contexts.

enic_hard_start_xmit only frees the skb when dropping it.
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>

drivers/net/ethernet/cisco/enic/enic_main.c

@@ -521,7 +521,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
 	unsigned int txq_map;
 
 	if (skb->len <= 0) {
-		dev_kfree_skb(skb);
+		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
 	}
 
@@ -536,7 +536,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
 	if (skb_shinfo(skb)->gso_size == 0 &&
 	    skb_shinfo(skb)->nr_frags + 1 > ENIC_NON_TSO_MAX_DESC &&
 	    skb_linearize(skb)) {
-		dev_kfree_skb(skb);
+		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
 	}