Verify that we report ENOENT when userspace tries to create a thread-group leader pidfd for a thread pidfd that isn't a thread-group leader. Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx> --- tools/testing/selftests/pidfd/pidfd_info_test.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/pidfd/pidfd_info_test.c b/tools/testing/selftests/pidfd/pidfd_info_test.c index accfd6bdc539..a0eb6e81eaa2 100644 --- a/tools/testing/selftests/pidfd/pidfd_info_test.c +++ b/tools/testing/selftests/pidfd/pidfd_info_test.c @@ -299,6 +299,7 @@ TEST_F(pidfd_info, thread_group) /* Opening a thread as a thread-group leader must fail. */ pidfd_thread = sys_pidfd_open(pid_thread, 0); ASSERT_LT(pidfd_thread, 0); + ASSERT_EQ(errno, ENOENT); /* Opening a thread as a PIDFD_THREAD must succeed. */ pidfd_thread = sys_pidfd_open(pid_thread, PIDFD_THREAD); -- 2.47.2
