coverity: #1425744

src/lxc/conf.c

@@ -3815,6 +3815,9 @@ int userns_exec_1(struct lxc_conf *conf, int (*fn)(void *), void *data,
 	int ret = -1, status = -1;
 	struct lxc_list *idmap;
 
+	if (!conf)
+		return -EINVAL;
+
 	idmap = get_minimal_idmap(conf);
 	if (!idmap)
 		return -1;
@@ -3898,6 +3901,9 @@ int userns_exec_full(struct lxc_conf *conf, int (*fn)(void *), void *data,
 	struct id_map *container_root_uid = NULL, *container_root_gid = NULL,
 		      *host_uid_map = NULL, *host_gid_map = NULL;
 
+	if (!conf)
+		return -EINVAL;
+
 	ret = pipe(p);
 	if (ret < 0) {
 		SYSERROR("opening pipe");

src/lxc/lxccontainer.c

@@ -2698,6 +2698,7 @@ static bool do_lxcapi_destroy(struct lxc_container *c)
 {
 	if (!c || !lxcapi_is_defined(c))
 		return false;
+
 	if (has_snapshots(c)) {
 		ERROR("Container %s has snapshots;  not removing", c->name);
 		return false;