linux-kernel - [PATCH] perf data: close all files in close

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Message-Id: <20210621214220.167927-1-rickyman7@gmail.com>
Date:   Mon, 21 Jun 2021 23:42:19 +0200
From:   Riccardo Mancini <rickyman7@...il.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Riccardo Mancini <rickyman7@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Zhen Lei <thunder.leizhen@...wei.com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] perf data: close all files in close_dir

When using perf report in directory mode, the first file is not closed on
exit, causing a memory leak.
The problem is caused by the iterating variable never reaching 0.

Signed-off-by: Riccardo Mancini <rickyman7@...il.com>
---
 tools/perf/util/data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index 8fca4779ae6a..70b91ce35178 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -20,7 +20,7 @@
 
 static void close_dir(struct perf_data_file *files, int nr)
 {
-	while (--nr >= 1) {
+	while (--nr >= 0) {
 		close(files[nr].fd);
 		zfree(&files[nr].path);
 	}
-- 
2.23.0