[LTP] [PATCH v1] Change the fd validity check to < 0

[成渭滨]

---
 testcases/kernel/controllers/cgroup/cgroup_core02.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/testcases/kernel/controllers/cgroup/cgroup_core02.c b/testcases/kernel/controllers/cgroup/cgroup_core02.c
index aba387197..a5c8c9684 100644
--- a/testcases/kernel/controllers/cgroup/cgroup_core02.c
+++ b/testcases/kernel/controllers/cgroup/cgroup_core02.c
@@ -77,8 +77,8 @@ static void test_lesser_ns_open(void)
 		SAFE_MUNMAP(stack, STACK_SIZE);
 
 		for (i = 0; i < targ.loops; i++) {
-			if (targ.fds[i] < 1) {
-				tst_res(TFAIL, "unexpected negative fd %d", targ.fds[i]);
+			if (targ.fds[i] < 0) {
+				tst_res(TFAIL, "unexpected invalid fd %d", targ.fds[i]);
 				exit(1);
 			}
 
-- 
2.20.1