libpcp/derive_fetch.c - forward_null Original Coverity case #73. http://people.redhat.com/mgoodwin/pcp-cov/1/73derive_fetch.c.html#error
libpcp/derive_fetch.c - forward_null
Original Coverity case #73.
http://people.redhat.com/mgoodwin/pcp-cov/1/73derive_fetch.c.html#error

No functional code change here, but added an assert() to ensure that
np->left is not NULL before it is dereferenced.

mbaldessari/pcp,mbaldessari/pcp,prasincs/pcp,andyvand/cygpcpfans,wuliming/pcp,wuliming/pcp,wuliming/pcp,prasincs/pcp,tjanez/pcp,adfernandes/pcp,ryandoyle/pcp_original,andyvand/cygpcpfans,tjanez/pcp,tjanez/pcp,wuliming/pcp,andyvand/cygpcpfans,aeg-aeg/pcpfans,andyvand/cygpcpfans,edwardt/pcp,wuliming/pcp,aeg-aeg/pcpfans,ryandoyle/pcp_original,andyvand/cygpcpfans,aeg-aeg/pcpfans,prasincs/pcp,mbaldessari/pcp,ryandoyle/pcp_original,adfernandes/pcp,aeg-aeg/pcpfans,prasincs/pcp,ryandoyle/pcp_original,edwardt/pcp,aeg-aeg/pcpfans,aeg-aeg/pcpfans,ryandoyle/pcp_original,edwardt/pcp,aeg-aeg/pcpfans,ryandoyle/pcp_original,edwardt/pcp,edwardt/pcp,tjanez/pcp,wuliming/pcp,adfernandes/pcp,wuliming/pcp,aeg-aeg/pcpfans,andyvand/cygpcpfans,adfernandes/pcp,prasincs/pcp,edwardt/pcp,ryandoyle/pcp_original,mbaldessari/pcp,tjanez/pcp,edwardt/pcp,andyvand/cygpcpfans,prasincs/pcp,prasincs/pcp,prasincs/pcp,adfernandes/pcp,mbaldessari/pcp,adfernandes/pcp,tjanez/pcp,edwardt/pcp,adfernandes/pcp,mbaldessari/pcp,andyvand/cygpcpfans,tjanez/pcp,adfernandes/pcp,tjanez/pcp,ryandoyle/pcp_original,wuliming/pcp