From 9d6514f22230e3416f5e4b61359e962c8abdc4d0 Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Thu, 7 Dec 2017 15:09:46 +0100
Subject: [PATCH] coverity: #1425923

avoid NULL-pointer dereference

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---
 src/lxc/cgroups/cgfs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/lxc/cgroups/cgfs.c b/src/lxc/cgroups/cgfs.c
index efd627f04..a6c26549e 100644
--- a/src/lxc/cgroups/cgfs.c
+++ b/src/lxc/cgroups/cgfs.c
@@ -555,7 +555,10 @@ static bool find_hierarchy_mountpts( struct cgroup_meta_data *meta_data, char **
 			}
 		}
 
-		k = lxc_array_len((void **)h->all_mount_points);
+		if (h)
+			k = lxc_array_len((void **)h->all_mount_points);
+		else
+			k = 0;
 		r = lxc_grow_array((void ***)&h->all_mount_points, &h->all_mount_point_capacity, k + 1, 4);
 		if (r < 0)
 			goto out;