From 9efe423e4387893498e11c75207bc9a1c9121246 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 12 Apr 2023 14:56:28 -0300 Subject: [PATCH] perf pmu: Use perf_cpu_map__set_nr() in perf_pmu__cpus_match() to allow for refcnt checking One more step to allow for checking reference counting, user after free, etc. Cc: Adrian Hunter Cc: Alexey Bayduraev Cc: Dmitriy Vyukov Cc: Ian Rogers Cc: Jiri Olsa Cc: Namhyung Kim Cc: Riccardo Mancini Cc: Stephane Eranian Cc: Stephen Brennan Link: https://lore.kernel.org/ZDb9dycHQ11UIXwx@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/pmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 561e261..760c848 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -2020,8 +2020,8 @@ int perf_pmu__cpus_match(struct perf_pmu *pmu, struct perf_cpu_map *cpus, matched_cpus->map[matched_nr++] = cpu; } - unmatched_cpus->nr = unmatched_nr; - matched_cpus->nr = matched_nr; + perf_cpu_map__set_nr(unmatched_cpus, unmatched_nr); + perf_cpu_map__set_nr(matched_cpus, matched_nr); *mcpus_ptr = matched_cpus; *ucpus_ptr = unmatched_cpus; return 0; -- 2.7.4