[PATCH 1/3] perf stat: Check return value of asprintf() properly

From: Namhyung Kim
Date: Wed Jun 02 2021 - 17:22:46 EST


It returns -1 on error, so checking with 0 would not work.

Fixes: 12279429d862 ("perf stat: Uniquify hybrid event name")
Cc: Jin Yao <yao.jin@xxxxxxxxxxxxxxx>
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
tools/perf/util/stat-display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index b759dfd633b4..04afd41b6067 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -564,7 +564,7 @@ static void uniquify_event_name(struct evsel *counter)
counter->name, counter->pmu_name);
}

- if (ret) {
+ if (ret > 0) {
free(counter->name);
counter->name = new_name;
}
--
2.32.0.rc0.204.g9fa02ecfa5-goog