[PATCH] perf stat: Fix memory leak on error path

[Ian Rogers]

Strdup is used to deduplicate, ensure it isn't overwriting an already
created string by freeing first.

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

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 69f3cf3b4a44..e4fb02b05130 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -444,6 +444,7 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list)
 						"Add %s event to groups to get metric expression for %s\n",
 						metric_name,
 						counter->name);
+					free(printed);
 					printed = strdup(metric_name);
 				}
 				invalid = true;
-- 
2.34.0.rc0.344.g81b53c2807-goog