K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2020-07-23T17:26:53.131977Z
K 7
svn:log
V 314
locks: fix a long standing bug for primitives with kdtrace but without spinning

In such a case the second argument to lock_delay_arg_init was NULL which was
immediately causing a null pointer deref.

Since the sructure is only used for spin count, provide a dedicate routine
initializing it.

Reported by:	andrew

END