linux-kernel - [PATCH] perf jit: memset variable st using the correct size

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Message-Id: <1461020838-9260-1-git-send-email-colin.king@canonical.com>
Date:	Tue, 19 Apr 2016 00:07:18 +0100
From:	Colin King <colin.king@...onical.com>
To:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	rnaldo Carvalho de Melo <acme@...nel.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] perf jit: memset variable st using the correct size

From: Colin Ian King <colin.king@...onical.com>

The current code is memsetting the struct stat variable st with
the size of stat (which turns out to be 1 byte) rather than the
size of variable sz.

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 tools/perf/util/jitdump.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c
index 52fcef3..86afe96 100644
--- a/tools/perf/util/jitdump.c
+++ b/tools/perf/util/jitdump.c
@@ -412,7 +412,7 @@ static int jit_repipe_code_load(struct jit_buf_desc *jd, union jr_entry *jr)
 		return -1;
 	}
 	if (stat(filename, &st))
-		memset(&st, 0, sizeof(stat));
+		memset(&st, 0, sizeof(st));
 
 	event->mmap2.header.type = PERF_RECORD_MMAP2;
 	event->mmap2.header.misc = PERF_RECORD_MISC_USER;
@@ -500,7 +500,7 @@ static int jit_repipe_code_move(struct jit_buf_desc *jd, union jr_entry *jr)
 	size++; /* for \0 */
 
 	if (stat(filename, &st))
-		memset(&st, 0, sizeof(stat));
+		memset(&st, 0, sizeof(st));
 
 	size = PERF_ALIGN(size, sizeof(u64));
 
-- 
2.7.4