acl: Crashfix for handling namespaces that don't have a paths.

diff --git a/src/plugins/acl/acl-backend-vfile.c b/src/plugins/acl/acl-backend-vfile.c
index 6103d87cb7e21d56fa4655e7c881882d0f126617..2edc21392ca16178ddd665ee15c322d7a1078e38 100644 (file)
--- a/src/plugins/acl/acl-backend-vfile.c
+++ b/src/plugins/acl/acl-backend-vfile.c
@@ -140,7 +140,7 @@ acl_backend_vfile_get_local_dir(struct acl_backend *backend, const char *name)
                dir = mailbox_list_get_path(ns->list, name,
                                            MAILBOX_LIST_PATH_TYPE_MAILBOX);
        }
-       if (name == NULL) {
+       if (name == NULL && dir != NULL) {
                /* verify that the directory isn't same as INBOX's directory.
                   this is mainly for Maildir. */
                inbox = mailbox_list_get_path(ns->list, "INBOX",