[PATCH v1 1/3] perf parse-event: Avoid BPF test segv

From: Ian Rogers
Date: Thu Jul 27 2023 - 20:13:06 EST


loc is passed as NULL in tools/perf/tests/bpf.c do_test, meaning
errors trigger a segv when trying to access. Add the missing NULL
check.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/perf/util/parse-events.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 926d3ac97324..02647313c918 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -758,7 +758,7 @@ int parse_events_load_bpf_obj(struct parse_events_state *parse_state,

return 0;
errout:
- parse_events_error__handle(parse_state->error, param.loc->first_column,
+ parse_events_error__handle(parse_state->error, param.loc ? param.loc->first_column : 0,
strdup(errbuf), strdup("(add -v to see detail)"));
return err;
}
--
2.41.0.487.g6d72f3e995-goog