[LTP] [PATCH v2] setuid/setuid04.c: Fix a double cleanup() error

[MaShimiao <mas...@cn...>]

The cleanup() may be called twice by both the parent and child process
in this testcase leading to a failure.

This patch makes sure cleanup() is called only once by parent process.

Signed-off-by: Zeng Linggang <zen...@cn...>
Signed-off-by: Ma Shimiao <mas...@cn...>
---
  testcases/kernel/syscalls/setuid/setuid04.c |    2 +-
  1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/testcases/kernel/syscalls/setuid/setuid04.c
b/testcases/kernel/syscalls/setuid/setuid04.c
index d8e991e..365859b 100644
--- a/testcases/kernel/syscalls/setuid/setuid04.c
+++ b/testcases/kernel/syscalls/setuid/setuid04.c
@@ -88,7 +88,7 @@ static void do_master_child(void)
  	int pid;
  	int status;

-	if (SETUID(cleanup, ltpuser->pw_uid) == -1) {
+	if (SETUID(NULL, ltpuser->pw_uid) == -1) {
  		tst_brkm(TBROK, NULL,
  			 "setuid failed to set the effective uid to %d",
  			 ltpuser->pw_uid);
-- 1.7.1