perf test: Fix cpus and thread maps reference in error path
In error path to try user space event, both cpus and threads map now owned by evlist and freed by perf_evlist__set_maps call. Getting reference to keep them alive. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1449131658-1841-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -547,6 +547,13 @@ static int do_test_code_reading(bool try_kcore)
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if (ret < 0) {
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if (!excl_kernel) {
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excl_kernel = true;
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/*
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* Both cpus and threads are now owned by evlist
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* and will be freed by following perf_evlist__set_maps
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* call. Getting refference to keep them alive.
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*/
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cpu_map__get(cpus);
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thread_map__get(threads);
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perf_evlist__set_maps(evlist, NULL, NULL);
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perf_evlist__delete(evlist);
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evlist = NULL;
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