From: Namhyung Kim <namhyung....@lge.com>

The perf session environment information was saved (so allocated) during
perf_session__open, but was not freed.  As free(3) handles NULL pointer
input properly it won't cause a issue for writing modes - e.g. perf
record

Signed-off-by: Namhyung Kim <namhy...@kernel.org>
Cc: Andi Kleen <a...@firstfloor.org>
Cc: Feng Tang <feng.t...@intel.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Link: 
http://lkml.kernel.org/r/1353472999-23042-1-git-send-email-namhy...@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/session.c |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ce6f511..d5fb607 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -204,11 +204,28 @@ static void perf_session__delete_threads(struct 
perf_session *session)
        machine__delete_threads(&session->host_machine);
 }
 
+static void perf_session_env__delete(struct perf_session_env *env)
+{
+       free(env->hostname);
+       free(env->os_release);
+       free(env->version);
+       free(env->arch);
+       free(env->cpu_desc);
+       free(env->cpuid);
+
+       free(env->cmdline);
+       free(env->sibling_cores);
+       free(env->sibling_threads);
+       free(env->numa_nodes);
+       free(env->pmu_mappings);
+}
+
 void perf_session__delete(struct perf_session *self)
 {
        perf_session__destroy_kernel_maps(self);
        perf_session__delete_dead_threads(self);
        perf_session__delete_threads(self);
+       perf_session_env__delete(&self->header.env);
        machine__exit(&self->host_machine);
        close(self->fd);
        free(self);
-- 
1.7.9.2.358.g22243

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