releases/5.13.6/perf-inject-close-inject.output-on-exit.patch

From 02e6246f5364d5260a6ea6f92ab6f409058b162f Mon Sep 17 00:00:00 2001
From: Riccardo Mancini <rickyman7@gmail.com>
Date: Thu, 15 Jul 2021 18:07:15 +0200
Subject: perf inject: Close inject.output on exit

From: Riccardo Mancini <rickyman7@gmail.com>

commit 02e6246f5364d5260a6ea6f92ab6f409058b162f upstream.

ASan reports a memory leak when running:

  # perf test "83: Zstd perf.data compression/decompression"

which happens inside 'perf inject'.

The bug is caused by inject.output never being closed.

This patch adds the missing perf_data__close().

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 6ef81c55a2b6584c ("perf session: Return error code for perf_session__new() function on failure")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mamatha Inamdar <mamatha4@linux.vnet.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/c06f682afa964687367cf6e92a64ceb49aec76a5.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/perf/builtin-inject.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -908,8 +908,10 @@ int cmd_inject(int argc, const char **ar
 
 	data.path = inject.input_name;
 	inject.session = perf_session__new(&data, inject.output.is_pipe, &inject.tool);
-	if (IS_ERR(inject.session))
-		return PTR_ERR(inject.session);
+	if (IS_ERR(inject.session)) {
+		ret = PTR_ERR(inject.session);
+		goto out_close_output;
+	}
 
 	if (zstd_init(&(inject.session->zstd_data), 0) < 0)
 		pr_warning("Decompression initialization failed.\n");
@@ -951,5 +953,7 @@ int cmd_inject(int argc, const char **ar
 out_delete:
 	zstd_fini(&(inject.session->zstd_data));
 	perf_session__delete(inject.session);
+out_close_output:
+	perf_data__close(&inject.output);
 	return ret;
 }