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>
This commit is contained in:
Ian Rogers 2021-11-07 01:54:44 -07:00 committed by Arnaldo Carvalho de Melo
parent 4e88118c20
commit e4e290791d

View File

@ -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;