[PATCH HID for-next v1 4/9] selftests: hid: ensure the program is correctly pinned

From: Benjamin Tissoires
Date: Fri Jan 06 2023 - 05:25:26 EST


Turns out that if bpffs was not mounted, the test was silently passing.

So ensure it passes by checking the mount command result.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
---
tools/testing/selftests/hid/hid_bpf.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/hid/hid_bpf.c b/tools/testing/selftests/hid/hid_bpf.c
index d215bb492eb4..3b204a15e44b 100644
--- a/tools/testing/selftests/hid/hid_bpf.c
+++ b/tools/testing/selftests/hid/hid_bpf.c
@@ -640,7 +640,8 @@ TEST_F(hid_bpf, test_attach_detach)

/* pin the first program and immediately unpin it */
#define PIN_PATH "/sys/fs/bpf/hid_first_event"
- bpf_program__pin(self->skel->progs.hid_first_event, PIN_PATH);
+ err = bpf_program__pin(self->skel->progs.hid_first_event, PIN_PATH);
+ ASSERT_OK(err) TH_LOG("error while calling bpf_program__pin");
remove(PIN_PATH);
#undef PIN_PATH
usleep(100000);
--
2.38.1