acl: Give a better error message when trying to update ACLs for object without local...

diff --git a/src/plugins/acl/acl-backend-vfile.c b/src/plugins/acl/acl-backend-vfile.c
index aab7ab5bc716cfd47455dacc0d7689fd3c458fd5..5ddf92cf3905f5150d38974a7e65d4808e59c4e6 100644 (file)
--- a/src/plugins/acl/acl-backend-vfile.c
+++ b/src/plugins/acl/acl-backend-vfile.c
@@ -885,6 +885,12 @@ static int acl_backend_vfile_update_begin(struct acl_object_vfile *aclobj,
        gid_t gid;
        int fd;
 
+       if (aclobj->local_path == NULL) {
+               i_error("Can't update acl object '%s': No local acl file path",
+                       aclobj->aclobj.name);
+               return -1;
+       }
+
        /* first lock the ACL file */
        mailbox_list_get_permissions(_aclobj->backend->list, _aclobj->name,
                                     &mode, &gid, &gid_origin);