Make use of SAFE_WAIT()

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
diff --git a/testcases/kernel/syscalls/ipc/semctl/semctl01.c b/testcases/kernel/syscalls/ipc/semctl/semctl01.c
index 39cf64e..739eb5e 100644
--- a/testcases/kernel/syscalls/ipc/semctl/semctl01.c
+++ b/testcases/kernel/syscalls/ipc/semctl/semctl01.c
@@ -47,6 +47,7 @@
 #endif
 #include <sys/wait.h>
 #include "ipcsem.h"
+#include "safe_macros.h"
 
 char *TCID = "semctl01";
 
@@ -135,8 +136,7 @@
 	 * make sure children finished before we proceed with next testcase
 	 */
 	for (j = 0; j < NCHILD; j++) {
-		if (wait(&status) == -1)
-			tst_brkm(TBROK | TERRNO, cleanup, "wait() failed");
+		SAFE_WAIT(cleanup, &status);
 	}
 }