perf stat: Fix memory leak on error path
strdup() is used to deduplicate, ensure it isn't leaking an already created string by freeing first. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Garry <john.garry@huawei.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lore.kernel.org/lkml/20211107085444.3781604-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -444,6 +444,7 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list)
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"Add %s event to groups to get metric expression for %s\n",
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metric_name,
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counter->name);
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free(printed);
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printed = strdup(metric_name);
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}
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invalid = true;
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