linux-kernel - [PATCH v2 2/4] perf evsel: Missed close when probing hybrid core PMUs

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Message-ID: <20250617223356.2752099-2-irogers@google.com>
Date: Tue, 17 Jun 2025 15:33:54 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, Michael Petlan <mpetlan@...hat.com>, 
	Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>, Andi Kleen <ak@...ux.intel.com>, 
	Tiezhu Yang <yangtiezhu@...ngson.cn>, linux-perf-users@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/4] perf evsel: Missed close when probing hybrid core PMUs

Add missing close to avoid leaking perf events. In past perfs this
mattered little as the function was just used by perf list. As the
function is now used to detect hybrid PMUs leaking the perf event is
somewhat more painful.

Fixes: b41f1cec91c3 ("perf list: Skip unsupported events")
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/print-events.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c
index a786cbfb0ff5..83aaf7cda635 100644
--- a/tools/perf/util/print-events.c
+++ b/tools/perf/util/print-events.c
@@ -268,6 +268,7 @@ bool is_event_supported(u8 type, u64 config)
 			ret = evsel__open(evsel, NULL, tmap) >= 0;
 		}
 
+		evsel__close(evsel);
 		evsel__delete(evsel);
 	}
 
-- 
2.50.0.rc2.761.g2dc52ea45b-goog