coverity: #1425923

avoid NULL-pointer dereference Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

coverity: #1425923
3deed1c7 · Christian Brauner · dbbb8cf1 · 3deed1c7
Unverified Commit 3deed1c7 authored Dec 07, 2017 by Christian Brauner
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cgfs.c src/lxc/cgroups/cgfs.c +4 -1

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--- 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;