Caught by address/leak sanitizer.
Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/perf/util/bpf_off_cpu.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/bpf_off_cpu.c b/tools/perf/util/bpf_off_cpu.c
index 21f4d9ba023d..6af36142dc5a 100644
--- a/tools/perf/util/bpf_off_cpu.c
+++ b/tools/perf/util/bpf_off_cpu.c
@@ -98,22 +98,22 @@ static void off_cpu_finish(void *arg __maybe_unused)
/* v5.18 kernel added prev_state arg, so it needs to check the signature */
static void check_sched_switch_args(void)
{
- const struct btf *btf = btf__load_vmlinux_btf();
+ struct btf *btf = btf__load_vmlinux_btf();
const struct btf_type *t1, *t2, *t3;
u32 type_id;
type_id = btf__find_by_name_kind(btf, "btf_trace_sched_switch",
BTF_KIND_TYPEDEF);
if ((s32)type_id < 0)
- return;
+ goto cleanup;
t1 = btf__type_by_id(btf, type_id);
if (t1 == NULL)
- return;
+ goto cleanup;
t2 = btf__type_by_id(btf, t1->type);
if (t2 == NULL || !btf_is_ptr(t2))
- return;
+ goto cleanup;
t3 = btf__type_by_id(btf, t2->type);
/* btf_trace func proto has one more argument for the context */
@@ -121,6 +121,8 @@ static void check_sched_switch_args(void)
/* new format: pass prev_state as 4th arg */
skel->rodata->has_prev_state = true;
}
+cleanup:
+ btf__free(btf);
}
int off_cpu_prepare(struct evlist *evlist, struct target *target,
--
2.42.0.609.gbb76f46606-goog
