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selftests: harness: fix pidfd leak in __wait_for_test

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Fix the pidfd leak in kselftest_harness.h's __wait_for_test() where
childfd = syscall(__NR_pidfd_open, t->pid, 0) is never closed.

Fixes: 73a3cde976 ("selftests: harness: Implement test timeouts through pidfd")
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Link: https://patch.msgid.link/a82e275ccfb2609a1984d90ab559fa3af78f1e81.1776678050.git.tanggeliang@kylinos.cn
Reviewed-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Geliang Tang 2026-04-20 17:45:28 +08:00 committed by Christian Brauner
parent 62c4d31d78
commit 0eb307d613
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1 changed files with 1 additions and 0 deletions
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tools/testing/selftests/kselftest_harness.h
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@ -996,6 +996,7 @@ static void __wait_for_test(struct __test_metadata *t)
poll_child.fd = childfd;
poll_child.events = POLLIN;
ret = poll(&poll_child, 1, t->timeout * 1000);
close(childfd);
if (ret == -1) {
t->exit_code = KSFT_FAIL;
fprintf(TH_LOG_STREAM,