hash_notify_init is never called

[Juergen Hasch]

Hello,

in smbd/notify.c ( samba_2.2.0_alpha3 and head ) there seems to be an
invalid test for cnotify:

BOOL init_change_notify(void)
{
#if HAVE_KERNEL_CHANGE_NOTIFY
        cnotify = kernel_notify_init();
#endif
        if (!cnotify) cnotify = hash_notify_init();

        if (!cnotify) {
                DEBUG(0,("Failed to init change notify system\n"));
                return False;
        }

        return True;
}

Because cnotify is not zeroed, hash_notify_init will never be called if
the kernel change notification is not compiled in.
After adding 
 cnotify==NULL;
at the start of the function I get the hash notification running.

... Juergen