selftests/x86/fsgsbase: Reap a forgotten child

The ptrace() test forgot to reap its child.  Reap it.

Signed-off-by: Andy Lutomirski <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/e7700a503f30e79ab35a63103938a19893dbeff2.1598461151.git.luto@kernel.org

diff --git a/tools/testing/selftests/x86/fsgsbase.c b/tools/testing/selftests/x86/fsgsbase.c
index 9983195535237214f5085cc212f38592f109cc6a..0056e2597f53a08937926bf75b48ba56b4c645d2 100644 (file)
--- a/tools/testing/selftests/x86/fsgsbase.c
+++ b/tools/testing/selftests/x86/fsgsbase.c
@@ -517,6 +517,9 @@ static void test_ptrace_write_gsbase(void)
 
 END:
        ptrace(PTRACE_CONT, child, NULL, NULL);
+       wait(&status);
+       if (!WIFEXITED(status))
+               printf("[WARN]\tChild didn't exit cleanly.\n");
 }
 
 int main()