if_vlan: Call dev_kfree_skb_any instead of kfree_skb.
Replace kfree_skb with dev_kfree_skb_any in vlan_insert_tag as
vlan_insert_tag can be called from hard irq context (netpoll)
and from other contexts.
dev_kfree_skb_any is used as vlan_insert_tag only frees the skb if the
skb can not be modified to insert a tag, in which case vlan_insert_tag
drops the skb.
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
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