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Check for pte being NULL in return from pmap_pte_pde- unlikely or

Description

Check for pte being NULL in return from pmap_pte_pde- unlikely or
even impossible, but it's better ot have a panic and a quiesced
gcc4.2.

Details

Provenance
Matt Jacob <mjacob@FreeBSD.org>Authored on Jun 17 2007, 4:27 AM
Parents
rG27705ac0875d: Initialize lastaddr to zero to make gcc4.2 happy.
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