Description of problem:
Error handling in src/cache.c:ldap_cache_addrdatalist is broken.

Version-Release number of selected component (if applicable):
bind-dyndb-ldap-1.0.0-0.2.b1.fc17

Additional info:
The cache->mutex is not unlocked in the following code path due to CHECK() macro.
...
        if (result == ISC_R_EXISTS) {
                /* Replace it */
                CHECK(dns_rbt_deletename(cache->rbt, name, ISC_FALSE));
                goto retry;
        } else if (result != ISC_R_SUCCESS) {
...