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

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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





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