[LTP] [PATCH] containers/utsname04: don't use TST_EXP_EQ_LI for tst_clone

[Yang Xu]

For old kernel that doesn't support clone3, tst_clone returns
-2 instead of -1. So we can't use TST_EXP_EQ_LI api.

Signed-off-by: Yang Xu <xuyang2018.jy@fujitsu.com>
---
 testcases/kernel/containers/utsname/utsname04.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/containers/utsname/utsname04.c b/testcases/kernel/containers/utsname/utsname04.c
index e8d636d0d..1adc4542c 100644
--- a/testcases/kernel/containers/utsname/utsname04.c
+++ b/testcases/kernel/containers/utsname/utsname04.c
@@ -22,6 +22,7 @@ static void run(void)
 {
 	const struct tst_clone_args cargs = { CLONE_NEWUTS, SIGCHLD };
 	struct passwd *pw;
+	pid_t pid;
 
 	tst_res(TINFO, "Dropping root privileges");
 
@@ -29,7 +30,11 @@ static void run(void)
 	SAFE_SETRESUID(pw->pw_uid, pw->pw_uid, pw->pw_uid);
 
 	if (!str_op || !strcmp(str_op, "clone")) {
-		TST_EXP_EQ_LI(tst_clone(&cargs), -1);
+		pid = tst_clone(&cargs);
+		if (pid == -1 || pid == -2)
+			tst_res(TPASS, "clone() returns an expected value %d", pid);
+		else
+			tst_res(TFAIL, "clone() returns an unexpected value %d", pid);
 		TST_EXP_PASS(errno == EPERM);
 	} else {
 		if (!SAFE_FORK()) {
-- 
2.39.1