perf env: Fix sibling_dies memory leak

ASan reports a memory leak in perf_env while running:

  # perf test "41: Session topology"

Caused by sibling_dies not being freed.

This patch adds the required free.

Fixes: acae8b36cded0ee6 ("perf header: Add die information in CPU topology")
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/2140d0b57656e4eb9021ca9772250c24c032924b.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index ebc5e9a..6c76594 100644 (file)
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -186,6 +186,7 @@ void perf_env__exit(struct perf_env *env)
        zfree(&env->cpuid);
        zfree(&env->cmdline);
        zfree(&env->cmdline_argv);
+       zfree(&env->sibling_dies);
        zfree(&env->sibling_cores);
        zfree(&env->sibling_threads);
        zfree(&env->pmu_mappings);