perf affinity: Allow passing a NULL arg to affinity__cleanup()
Just like with free(), NULL is checked to avoid having all callers do it. Its convenient for when not using affinity setup/cleanup for dummy CPU maps, i.e. CPU maps for pid targets. Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20220117160931.1191712-2-acme@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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