attach: check for ENOCGROUP2 explicitly

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
lxc · Feb 2, 2021 · 29619d4 · 29619d4
1 parent 6b55ce0
commit 29619d4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/lxc/attach.c b/src/lxc/attach.c
@@ -1522,7 +1522,7 @@ int lxc_attach(struct lxc_container *container, lxc_attach_exec_t exec_function,
 		 * enough.
 		 */
 		ret = cgroup_attach(conf, name, lxcpath, pid);
-		if (ret) {
+		if (ret == -ENOCGROUP2) {
 			call_cleaner(cgroup_exit) struct cgroup_ops *cgroup_ops = NULL;
 
 			cgroup_ops = cgroup_init(conf);