selftests/bpf: Fix error checking for cpumask_success__load()

We should verify the return value of cpumask_success__load().

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240206081416.26242-4-laoar.shao@gmail.com

diff --git a/tools/testing/selftests/bpf/prog_tests/cpumask.c b/tools/testing/selftests/bpf/prog_tests/cpumask.c
index c2e8863..ecf89df 100644 (file)
--- a/tools/testing/selftests/bpf/prog_tests/cpumask.c
+++ b/tools/testing/selftests/bpf/prog_tests/cpumask.c
@@ -27,7 +27,7 @@ static void verify_success(const char *prog_name)
        struct bpf_program *prog;
        struct bpf_link *link = NULL;
        pid_t child_pid;
-       int status;
+       int status, err;
 
        skel = cpumask_success__open();
        if (!ASSERT_OK_PTR(skel, "cpumask_success__open"))
@@ -36,8 +36,8 @@ static void verify_success(const char *prog_name)
        skel->bss->pid = getpid();
        skel->bss->nr_cpus = libbpf_num_possible_cpus();
 
-       cpumask_success__load(skel);
-       if (!ASSERT_OK_PTR(skel, "cpumask_success__load"))
+       err = cpumask_success__load(skel);
+       if (!ASSERT_OK(err, "cpumask_success__load"))
                goto cleanup;
 
        prog = bpf_object__find_program_by_name(skel->obj, prog_name);