From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Sat, 7 Dec 2019 23:41:36 +0000 (+0100)
Subject: cgroups/cgfsng: rework cgfsng_nrtasks()
X-Git-Tag: lxc-4.0.0~78^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1aae36a98fa51b66f09807e1aa0bdd470ce2f8da;p=thirdparty%2Flxc.git

cgroups/cgfsng: rework cgfsng_nrtasks()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/cgroups/cgfsng.c b/src/lxc/cgroups/cgfsng.c
index 0ce7258f0..f6e7a9df6 100644
--- a/src/lxc/cgroups/cgfsng.c
+++ b/src/lxc/cgroups/cgfsng.c
@@ -1933,8 +1933,11 @@ __cgfsng_ops static int cgfsng_nrtasks(struct cgroup_ops *ops)
 {
 	__do_free char *path = NULL;
 
+	if (!ops)
+		return ret_set_errno(-1, ENOENT);
+
 	if (!ops->container_cgroup || !ops->hierarchies)
-		return -1;
+		return ret_set_errno(-1, EINVAL);
 
 	path = must_make_path(ops->hierarchies[0]->container_full_path, NULL);
 	return recursive_count_nrtasks(path);