Description:
1. Defect type: CLANG_WARNING
   389-ds-base-1.3.4.0/ldap/servers/slapd/conntable.c:161:11: warning:
   Access to field 'c_ct' results in a dereference of a null pointer
   (loaded from variable 'c')

Thanks to rmeggins@redhat.com for the advice:
> PR_NewLock() returns NULL then the server is severely out of some
> resource (like RAM, stack space, etc.) and probably should just exit.

https://fedorahosted.org/389/ticket/48203#comment:8
(cherry picked from commit bca0908b1e10ada69cdc051d4aaceda73a940597)
(cherry picked from commit a741911c9a5090d78f7a81c475bea3f6593d72ad)