[PATCH 8/8] perf tools: Force perf_data__open|close zero data->file.path

From: Jiri Olsa <jolsa@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>,
	Nageswara R Sastry <nasastry@in.ibm.com>,
	Ravi Bangoria <ravi.bangoria@linux.ibm.com>,
	Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 8/8] perf tools: Force perf_data__open|close zero data->file.path
Date: Tue,  5 Mar 2019 16:25:36 +0100	[thread overview]
Message-ID: <20190305152536.21035-9-jolsa@kernel.org> (raw)
In-Reply-To: <20190305152536.21035-1-jolsa@kernel.org>

Making sure the data->file.path is zeroed on perf_data__open
error path and in perf_data__close, so we don't double free
it in case someone call it twice.

Link: http://lkml.kernel.org/n/tip-yt0yz1y9h5vdppsj8nkiuh07@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/data.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index 7bd5ddeb7a41..e098e189f93e 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -237,7 +237,7 @@ static int open_file(struct perf_data *data)
 	     open_file_read(data) : open_file_write(data);
 
 	if (fd < 0) {
-		free(data->file.path);
+		zfree(&data->file.path);
 		return -1;
 	}
 
@@ -270,7 +270,7 @@ int perf_data__open(struct perf_data *data)
 
 void perf_data__close(struct perf_data *data)
 {
-	free(data->file.path);
+	zfree(&data->file.path);
 	close(data->file.fd);
 }
 
-- 
2.17.2

