diff options
Diffstat (limited to 'tools/perf/util/map.c')
| -rw-r--r-- | tools/perf/util/map.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index cd0e335008b4..2d20c5ff8653 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -426,7 +426,7 @@ void map_groups__init(struct map_groups *mg, struct machine *machine) INIT_LIST_HEAD(&mg->removed_maps[i]); } mg->machine = machine; - mg->refcnt = 1; + atomic_set(&mg->refcnt, 1); } static void maps__delete(struct rb_root *maps) @@ -494,7 +494,7 @@ void map_groups__delete(struct map_groups *mg) void map_groups__put(struct map_groups *mg) { - if (--mg->refcnt == 0) + if (mg && atomic_dec_and_test(&mg->refcnt)) map_groups__delete(mg); } |