From eeb1084c9b4fc4bdbc8b0902e202861036f3dde3 Mon Sep 17 00:00:00 2001 From: Ivana Hutarova Varekova Date: Wed, 28 Jul 2010 14:11:53 +0200 Subject: [PATCH] add the return value check in lssubsys II This patch add one return value check for lssubsys Signed-off-by: Ivana Hutarova Varekova Signed-off-by: Jan Safranek --- src/tools/lssubsys.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/tools/lssubsys.c b/src/tools/lssubsys.c index 89d02290..e48daa6c 100644 --- a/src/tools/lssubsys.c +++ b/src/tools/lssubsys.c @@ -195,6 +195,11 @@ static int print_all_controllers_in_hierarchy(const char *tname, } ret = cgroup_get_all_controller_begin(&handle, &info); + if ((ret != 0) && (ret != ECGEOF)) { + fprintf(stderr, "cannot read controller data: %s\n", + cgroup_strerror(ret)); + return ret; + } while (ret != ECGEOF) { /* controller is in the hierrachy */ -- 2.47.2