lua: fix a bug in the parsing of /proc/mounts

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

diff --git a/src/lua-lxc/lxc.lua b/src/lua-lxc/lxc.lua
index b48eb76f3667b521795754ad947970806c9e639b..05501ecc870205cd13bebe2b3653c17532b33003 100755 (executable)
--- a/src/lua-lxc/lxc.lua
+++ b/src/lua-lxc/lxc.lua
@@ -89,6 +89,9 @@ function cgroup_path_get()
        while true do
            local c
            line = f:read()
+           if line == nil then
+               break
+           end
            c = line:split(" ", 6)
            if (c[1] == "cgroup") then
                cgroup_path = dirname(c[2])