diff options
| author | sunliming <sunliming@kylinos.cn> | 2023-06-26 19:13:44 +0800 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-06-28 11:01:35 -0400 |
| commit | d34a271accf8fad00e05aad2cecb9fb53a840a94 (patch) | |
| tree | 613c36d7fcace7820affc84e9885612b45f68e0a /tools/testing/selftests/user_events/ftrace_test.c | |
| parent | c27b40cf919254459698d6622828152b509b9980 (diff) | |
selftests/user_events: Add test cases when event is disabled
When user_events are disabled, it's write operation should return -EBADF.
Add this test cases.
Link: https://lkml.kernel.org/r/20230626111344.19136-4-sunliming@kylinos.cn
Acked-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: sunliming <sunliming@kylinos.cn>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'tools/testing/selftests/user_events/ftrace_test.c')
| -rw-r--r-- | tools/testing/selftests/user_events/ftrace_test.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/user_events/ftrace_test.c b/tools/testing/selftests/user_events/ftrace_test.c index 88898749e5b7..5beb0aef1d81 100644 --- a/tools/testing/selftests/user_events/ftrace_test.c +++ b/tools/testing/selftests/user_events/ftrace_test.c @@ -324,6 +324,10 @@ TEST_F(user, write_events) { io[0].iov_base = ®.write_index; io[0].iov_len = sizeof(reg.write_index); + /* Write should return -EBADF when event is not enabled */ + ASSERT_EQ(-1, writev(self->data_fd, (const struct iovec *)io, 3)); + ASSERT_EQ(EBADF, errno); + /* Enable event */ self->enable_fd = open(enable_file, O_RDWR); ASSERT_NE(-1, write(self->enable_fd, "1", sizeof("1"))) |