linux-kernel - [PATCH 1/2] selftests/x86/fsgsbase: Reap a forgotten child

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Message-Id: <e7700a503f30e79ab35a63103938a19893dbeff2.1598461151.git.luto@kernel.org>
Date:   Wed, 26 Aug 2020 10:00:45 -0700
From:   Andy Lutomirski <luto@...nel.org>
To:     x86@...nel.org
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Andy Lutomirski <luto@...nel.org>
Subject: [PATCH 1/2] selftests/x86/fsgsbase: Reap a forgotten child

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

Signed-off-by: Andy Lutomirski <luto@...nel.org>
---
 tools/testing/selftests/x86/fsgsbase.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/x86/fsgsbase.c b/tools/testing/selftests/x86/fsgsbase.c
index 998319553523..0056e2597f53 100644
--- 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()
-- 
2.25.4