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perf c2c: Free format list entries when releasing c2c hist entries

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c2c_hists__init() calls hpp_list__parse() which allocates and registers
format entries on hists->list.  When c2c_he_free() destroys a c2c hist
entry, it deletes the histogram entries and frees the hists container but
never unregisters the format list entries, leaking them.

Call perf_hpp__reset_output_field() before freeing the hists to properly
unregister and free all format entries.

Fixes: f485e33c4543ac31 ("perf c2c report: Add cacheline hists processing")
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Assisted-by: Claude:claude-opus-4.6
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2026-06-10 21:23:35 -03:00
parent 033e85edfb
commit 4a7500d772
1 changed files with 1 additions and 0 deletions
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1
tools/perf/builtin-c2c.c
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@@ -185,6 +185,7 @@ static void c2c_he_free(void *he)
c2c_he = container_of(he, struct c2c_hist_entry, he);
if (c2c_he->hists) {
hists__delete_entries(&c2c_he->hists->hists);
perf_hpp__reset_output_field(&c2c_he->hists->list);
zfree(&c2c_he->hists);
}