libpcp/derive.c - resource_leak Original Coverity case #212. http://people.redhat.com/mgoodwin/pcp-cov/1/212derive.c.html#error
libpcp/derive.c - resource_leak
Original Coverity case #212.
http://people.redhat.com/mgoodwin/pcp-cov/1/212derive.c.html#error

Add one more free_expr(expr) before return NULL.

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