Stephen J. Kiernan 63c1ff65d1 When the input parameter node is NULL, memory is allocated to it.
To later free the memory, introduce a new variable lnode to track when
this happens.

Submitted by:	Thomas Rix <trix@juniper.net>
Reviewed by:	emax
Approved by:	sjg (mentor)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D9878
2017-06-06 22:17:55 +00:00
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