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-rw-r--r--tools/perf/util/evlist.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 0f9cd703e725..6cda5a311ba5 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -607,6 +607,8 @@ static struct mmap *evlist__alloc_mmap(struct evlist *evlist,
return NULL;
for (i = 0; i < evlist->core.nr_mmaps; i++) {
+ struct perf_mmap *prev = i ? &map[i - 1].core : NULL;
+
/*
* When the perf_mmap() call is made we grab one refcount, plus
* one extra to let perf_mmap__consume() get the last
@@ -616,7 +618,7 @@ static struct mmap *evlist__alloc_mmap(struct evlist *evlist,
* Each PERF_EVENT_IOC_SET_OUTPUT points to this mmap and
* thus does perf_mmap__get() on it.
*/
- perf_mmap__init(&map[i].core, overwrite, perf_mmap__unmap_cb);
+ perf_mmap__init(&map[i].core, prev, overwrite, perf_mmap__unmap_cb);
}
return map;