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From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ian Rogers <irogers@google.com>, Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	James Clark <james.clark@linaro.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-perf-users@vger.kernel.org,
	Swapnil Sapkal <swapnil.sapkal@amd.com>
Subject: [PATCH v1 3/3] perf sched: Free subcommand string after perf sched stats
Date: Mon, 13 Jul 2026 13:47:07 -0700	[thread overview]
Message-ID: <20260713204707.2181098-4-namhyung@kernel.org> (raw)
In-Reply-To: <20260713204707.2181098-1-namhyung@kernel.org>

The first entry of the sched_usage is dynamically allocated in
parse_options_subcommand() so it should be released at the end.
Do not return from a subcommand directly.

Fixes: 064790a3d4a8 ("perf sched stats: Add support for diff subcommand")
Cc: Swapnil Sapkal <swapnil.sapkal@amd.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-sched.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 439e50d9a936f6c1..cc5b61cb9291fa02 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -5260,19 +5260,20 @@ int cmd_sched(int argc, const char **argv)
 			if (argc)
 				argc = parse_options(argc, argv, stats_options,
 						     stats_usage, 0);
-			return perf_sched__schedstat_record(&sched, argc, argv);
+			ret = perf_sched__schedstat_record(&sched, argc, argv);
 		} else if (argv[0] && !strcmp(argv[0], "report")) {
 			if (argc)
 				argc = parse_options(argc, argv, stats_options,
 						     stats_usage, 0);
-			return perf_sched__schedstat_report(&sched);
+			ret = perf_sched__schedstat_report(&sched);
 		} else if (argv[0] && !strcmp(argv[0], "diff")) {
 			if (argc)
 				argc = parse_options(argc, argv, stats_options,
 						     stats_usage, 0);
-			return perf_sched__schedstat_diff(&sched, argc, argv);
+			ret = perf_sched__schedstat_diff(&sched, argc, argv);
+		} else {
+			ret = perf_sched__schedstat_live(&sched, argc, argv);
 		}
-		return perf_sched__schedstat_live(&sched, argc, argv);
 	} else {
 		usage_with_options(sched_usage, sched_options);
 	}
-- 
2.55.0.795.g602f6c329a-goog


      parent reply	other threads:[~2026-07-13 20:47 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-13 20:47 [PATCH v1 0/3] perf sched stats: Fix memory leaks Namhyung Kim
2026-07-13 20:47 ` [PATCH v1 1/3] perf sched: Add missing perf_session__delete() Namhyung Kim
2026-07-13 20:59   ` sashiko-bot
2026-07-13 23:00     ` Namhyung Kim
2026-07-13 20:47 ` [PATCH v1 2/3] perf sched: Fix memory leaks in perf sched stats report Namhyung Kim
2026-07-13 20:47 ` Namhyung Kim [this message]

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