[PATCH 6/9] perf c2c: Free format list entries when c2c_hists__init() fails

[Arnaldo Carvalho de Melo <acme@kernel.org>]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

When c2c_hists__init() fails partway through hpp_list__parse(),
dynamically allocated format structures that were already added to
hists->list are leaked because he__get_c2c_hists() frees the hists
container without first unregistering the format entries.

Call perf_hpp__reset_output_field() before freeing the hists container
on the error path, matching what c2c_he_free() already does on the
normal destruction path.

Fixes: 17a7c5946d79a12c ("perf c2c report: Decode c2c_stats for hist entries")
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Assisted-by: Claude <noreply@anthropic.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-c2c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 07c7e8fb315e6cf3..eabb922ef295ef86 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -226,6 +226,7 @@ he__get_c2c_hists(struct hist_entry *he,
 
 	ret = c2c_hists__init(hists, sort, nr_header_lines, env);
 	if (ret) {
+		perf_hpp__reset_output_field(&hists->list);
 		c2c_he->hists = NULL;
 		free(hists);
 		return NULL;
-- 
2.54.0