sit: Add missing kfree_skb() on pskb_may_pull() failure.

[ Upstream commit: 36ca34cc3b8335eb1fe8bd9a1d0a2592980c3f02 ]

Noticed by Paul Marks <paul@pmarks.net>.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 file changed