Merge of r4785, r4795, r4811, r4812, r4816, r4822: coverity. *) Resolver: fixed possible memory leak in ngx_resolver_create(). *) Explicitly ignore returned value from unlink() in ngx_open_tempfile(). *) Explicitly ignore returned value from close() in ngx_event_core_init_conf(). *) Added three missing checks for NULL after ngx_array_push() calls. *) Crypt: fixed handling of corrupted SSHA entries in password file. *) Mark logically dead code with corresponding comment. Found by / prodded by Coverity.

--- a/src/http/modules/ngx_http_limit_conn_module.c
+++ b/src/http/modules/ngx_http_limit_conn_module.c
@@ -721,6 +721,10 @@ ngx_http_limit_conn(ngx_conf_t *cf, ngx_
     }
 
     limit = ngx_array_push(&lccf->limits);
+    if (limit == NULL) {
+        return NGX_CONF_ERROR;
+    }
+
     limit->conn = n;
     limit->shm_zone = shm_zone;